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556 vulnerabilities by FreeRDP
CVE-2026-109953 (GCVE-0-2026-109953)
Vulnerability from nvd – Published: 2026-10-13 13:27 – Updated: 2026-10-13 13:27
VLAI
EPSS
VEX
Title
FreeRDP 3.0.0 before 3.32.0 Cleartext Credential Disclosure via /restricted-admin
Summary
FreeRDP 3.0.0 before 3.32.0 contains an insufficiently protected credentials vulnerability where the /restricted-admin option fails to suppress CredSSP credential delegation, sending the cleartext password to the RDP server. A compromised or man-in-the-middle destination host can decode TSPasswordCreds and the Client Info PDU to obtain reusable administrative domain, username, and password values.
Severity
CWE
- CWE-522 - Insufficiently Protected Credentials
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.0.… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109952 (GCVE-0-2026-109952)
Vulnerability from nvd – Published: 2026-10-13 13:27 – Updated: 2026-10-13 13:27
VLAI
EPSS
VEX
Title
FreeRDP 3.0.0 before 3.32.0 Security Protocol Downgrade via Negotiation Response
Summary
The FreeRDP client 3.0.0 before 3.32.0 does not check a server-selected PROTOCOL_RDSTLS or PROTOCOL_HYBRID_EX against its enabled protocol set in nego_process_negotiation_response(), allowing a security protocol downgrade. A malicious server or man-in-the-middle can select RDSTLS to override /sec:nla pinning, complete authentication with an all-zero cookie, and receive the user's cleartext password in the Client Info PDU.
Severity
CWE
- CWE-757 - Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.0.… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109951 (GCVE-0-2026-109951)
Vulnerability from nvd – Published: 2026-10-13 13:27 – Updated: 2026-10-13 13:27
VLAI
EPSS
VEX
Title
FreeRDP 3.17.1 before 3.32.0 Heap Buffer Over-Read via Proxy DRDYNVC Channel Name
Summary
FreeRDP 3.17.1 before 3.32.0 contains a heap buffer over-read vulnerability in DynvcTrackerHandleCreateBack of the freerdp-proxy DRDYNVC channel handler that allows malicious backend RDP servers to read heap memory out of bounds. Attackers can send a CREATE_REQUEST_PDU whose channel name lacks a NUL byte, causing an unbounded snprintf read that leaks memory into proxy logs or crashes the process.
Severity
5.3 (Medium)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.17… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109950 (GCVE-0-2026-109950)
Vulnerability from nvd – Published: 2026-10-13 13:27 – Updated: 2026-10-13 13:47
VLAI
EPSS
VEX
Title
FreeRDP 3.0.0 before 3.32.0 Heap Out-of-Bounds Read via RD Gateway Messages
Summary
FreeRDP from 3.0.0 before 3.32.0 contains a heap out-of-bounds read vulnerability that allows a malicious RD Gateway to crash clients by sending mismatched message lengths. Attackers controlling the gateway can set MsgBytes far larger than the NDR string ActualCount in consent or service messages, causing UTF-8 conversion to read past the stream allocation and disrupt client availability.
Severity
4.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 13:46 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.0.… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109949 (GCVE-0-2026-109949)
Vulnerability from nvd – Published: 2026-10-13 13:27 – Updated: 2026-10-13 16:43
VLAI
EPSS
VEX
Title
FreeRDP 3.0.0 before 3.32.0 PIN Brute-Force via Virtual Smartcard
Summary
FreeRDP 3.0.0 before 3.32.0 contains an improper restriction of excessive authentication attempts in its virtual smartcard GIDS implementation, which stores the PIN retry counter per-handle. A malicious RDP server can exhaust the counter with VERIFY APDUs, then request a new SCardConnect to reset attempts, enabling unbounded online brute-forcing of the configured smartcard PIN.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 16:21 UTC
CWE
- CWE-307 - Improper Restriction of Excessive Authentication Attempts
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.0.… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109948 (GCVE-0-2026-109948)
Vulnerability from nvd – Published: 2026-10-13 13:27 – Updated: 2026-10-13 13:27
VLAI
EPSS
VEX
Title
FreeRDP 3.0.0 before 3.32.0 Memory Disclosure via SCardTransmit Smartcard Redirection
Summary
FreeRDP from 3.0.0 before 3.32.0 contains an uninitialized memory disclosure vulnerability in smartcard_Transmit_Call that allows malicious RDP servers to read client memory. Servers can send SCardTransmit requests with an invalid card handle and nonzero receive length, causing smartcard_pack_transmit_return to serialize up to 66,560 uninitialized heap bytes.
Severity
4.3 (Medium)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.0.… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109947 (GCVE-0-2026-109947)
Vulnerability from nvd – Published: 2026-10-13 13:27 – Updated: 2026-10-13 13:27
VLAI
EPSS
VEX
Title
FreeRDP 3.20.1 before 3.32.0 Unbounded Allocation via drive_process_irp_read
Summary
FreeRDP from 3.20.1 before 3.32.0 contains an uncontrolled resource allocation vulnerability that allows malicious RDP servers to exhaust client memory via oversized drive redirection read requests. Attackers can send IRP_MJ_READ with Length 0xffffffff, causing roughly 4 GiB of zeroed allocation on 64-bit builds or an under-reserved buffer on 32-bit builds.
Severity
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.20… | third-party-advisory |
Impacted products
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2026-09-29 00:00
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CVE-2026-109946 (GCVE-0-2026-109946)
Vulnerability from nvd – Published: 2026-10-13 13:27 – Updated: 2026-10-13 13:27
VLAI
EPSS
VEX
Title
FreeRDP 3.11.0 before 3.32.0 Reachable Assertion via AVC444 Odd Region Width
Summary
FreeRDP 3.11.0 before 3.32.0 does not validate that AVC444 and AVC444v2 region widths are even before YUV444 conversion, so an odd width reaches an assertion and aborts the client. A malicious or compromised RDP server can terminate a connected FreeRDP client after RDPGFX AVC444 negotiation by sending an in-bounds region rectangle with an odd width.
Severity
CWE
- CWE-617 - Reachable Assertion
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.11… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109945 (GCVE-0-2026-109945)
Vulnerability from nvd – Published: 2026-10-13 13:27 – Updated: 2026-10-13 13:54
VLAI
EPSS
VEX
Title
FreeRDP 3.0.0 before 3.32.0 Smartcard Use-After-Free via Concurrent Disconnect and Transmit
Summary
FreeRDP 3.0.0 before 3.32.0 contains a heap use-after-free vulnerability in smartcard emulation when SCARD_IOCTL_DISCONNECT and SCARD_IOCTL_TRANSMIT operate concurrently on one card handle. A malicious RDP server can overlap these IRPs through separate context workers to free and reuse the SCardHandle, causing client-process heap corruption and termination.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 13:53 UTC
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.0.… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109944 (GCVE-0-2026-109944)
Vulnerability from nvd – Published: 2026-10-13 13:27 – Updated: 2026-10-13 16:44
VLAI
EPSS
VEX
Title
FreeRDP 3.0.0 before 3.32.0 Reachable Assertion via Stale Smartcard Handle
Summary
FreeRDP 3.0.0 before 3.32.0 does not remove card handles when Emulate_SCardReleaseContext releases a smartcard-emulation context, so Emulate_SCardTransmit later looks up the deleted parent context and reaches a terminating WINPR_ASSERT. A malicious RDP server can crash a connecting client with smartcard emulation and redirection enabled by releasing a context, establishing another, and issuing SCardTransmit with the stale card handle.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 16:21 UTC
CWE
- CWE-617 - Reachable Assertion
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.0.… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109943 (GCVE-0-2026-109943)
Vulnerability from nvd – Published: 2026-10-13 13:27 – Updated: 2026-10-13 13:27
VLAI
EPSS
VEX
Title
FreeRDP 3.29.0 before 3.32.0 Double Free via Async-Update Polygon Order
Summary
FreeRDP 3.29.0 before 3.32.0 contains a double free in the client's async-update message proxy, which shallow-copies the parser-owned PolygonSC or PolygonCB points array when numPoints is zero, so both the queue consumer and parser cleanup free it. A malicious RDP server can send a point-bearing polygon order followed by a zero-point order to crash a client with +async-update enabled.
Severity
CWE
- CWE-415 - Double Free
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.29… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109942 (GCVE-0-2026-109942)
Vulnerability from nvd – Published: 2026-10-13 13:27 – Updated: 2026-10-13 13:27
VLAI
EPSS
VEX
Title
FreeRDP 2.3.0 before 3.32.0 NULL Pointer Dereference via RD Gateway Close Channel Packet
Summary
FreeRDP 2.3.0 before 3.32.0 dereferences a NULL stream in rdg_process_close_packet in libfreerdp/core/gateway/rdg.c because rdg_process_control_packet accepts a header-only PKT_TYPE_CLOSE_CHANNEL packet and passes the null payload without a check. A malicious or compromised RD Gateway can send an eight-byte CLOSE_CHANNEL header to crash a connecting FreeRDP client.
Severity
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-2.3.… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109941 (GCVE-0-2026-109941)
Vulnerability from nvd – Published: 2026-10-13 13:27 – Updated: 2026-10-13 13:27
VLAI
EPSS
VEX
Title
FreeRDP 2.3.0 before 3.32.0 Infinite Loop via RD Gateway Chunked Response
Summary
FreeRDP from 2.3.0 before 3.32.0 contains an infinite loop vulnerability in http_chuncked_read that allows malicious RD Gateways to hang clients by sending incomplete chunked responses. Attackers can send a partial chunk-size line or footer followed by a clean TLS shutdown, causing zero-byte reads to loop forever and freeze the client decoder thread.
Severity
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-2.3.… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109940 (GCVE-0-2026-109940)
Vulnerability from nvd – Published: 2026-10-13 13:27 – Updated: 2026-10-13 13:56
VLAI
EPSS
VEX
Title
FreeRDP 3.0.0-beta1 before 3.32.0 Stack Buffer Overflow via PKCS#11 Key Name
Summary
FreeRDP 3.0.0-beta1 before 3.32.0 on Unix builds with PKCS#11 support has a stack-based buffer overflow in wprintKeyName() in WinPR's NCrypt PKCS#11 provider. It hex-encodes a key's CKA_ID, which can be up to 64 bytes, into a fixed 128-byte stack buffer. An attacker supplying a malicious PKCS#11 token or module whose key and matching certificate use a 55- to 64-byte CKA_ID can overflow the client's stack during key enumeration, causing a crash.
Severity
4.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 13:55 UTC
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.0.… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109939 (GCVE-0-2026-109939)
Vulnerability from nvd – Published: 2026-10-13 13:27 – Updated: 2026-10-13 16:44
VLAI
EPSS
VEX
Title
FreeRDP 3.27.1 before 3.32.0 NULL Pointer Dereference via Cache Bitmap V3 Order
Summary
FreeRDP 3.27.1 before 3.32.0 contains a NULL pointer dereference in update_read_cache_bitmap_v3_order() in libfreerdp/core/orders.c, which accesses the client bitmap cache when the CBR3_DO_NOT_CACHE flag is set, even though the cache is not yet initialized before Demand Active. A malicious or compromised RDP server can send a Cache Bitmap V3 order during connection setup to crash a connecting client that has enabled the non-default Bitmap Cache V3 feature (/cache:codec:<rfx|nsc|jpeg>).
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 16:21 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.27… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109938 (GCVE-0-2026-109938)
Vulnerability from nvd – Published: 2026-10-13 13:27 – Updated: 2026-10-13 13:27
VLAI
EPSS
VEX
Title
FreeRDP 3.11.0 before 3.32.0 Integer Overflow via Mapped Video Geometry Update
Summary
Positive mapped-video coordinates overflow and abort FreeRDP clients A malicious or compromised RDP server can terminate a FreeRDP client after the user connects with video redirection enabled.
Severity
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.11… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109680 (GCVE-0-2026-109680)
Vulnerability from nvd – Published: 2026-10-13 13:27 – Updated: 2026-10-13 13:27
VLAI
EPSS
VEX
Title
FreeRDP 3.18.0 before 3.32.0 Heap Out-of-Bounds Write via ARM Redirected Username
Summary
FreeRDP 3.18.0 before 3.32.0 has a heap-based out-of-bounds write in freerdp_interruptible_get_line, which shrinks the buffer to 32 bytes while keeping a pre-filled suggested username's length as its write offset. A malicious or compromised ARM routing service can return a long redirectedUsername that reaches the CLI credential prompt, crashing the client when the user types input.
Severity
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.18… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109679 (GCVE-0-2026-109679)
Vulnerability from nvd – Published: 2026-10-13 13:27 – Updated: 2026-10-13 13:27
VLAI
EPSS
VEX
Title
FreeRDP 3.0.0-beta4 before 3.32.0 NULL Pointer Crash via ARM Response
Summary
FreeRDP 3.0.0-beta4 before 3.32.0 contains a NULL pointer dereference in arm_handle_request_ok when an ARM endpoint returns an empty HTTP 200 body. Attackers controlling the configured ARM gateway can return a zero-length body to pass NULL to strnlen and crash the connecting client.
Severity
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.0.… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109678 (GCVE-0-2026-109678)
Vulnerability from nvd – Published: 2026-10-13 13:27 – Updated: 2026-10-13 13:57
VLAI
EPSS
VEX
Title
FreeRDP 3.0.0-beta1 before 3.32.0 Reachable Assertion via Emulated SCardStatusA
Summary
FreeRDP 3.0.0-beta1 before 3.32.0, when built with verbose WinPR assertions and using smartcard emulation, has a reachable assertion: the emulated SCardStatusA passes a NULL reader-name destination to scard_copy_strings. A malicious RDP server can send an SCardStatusA request with fmszReaderNamesIsNULL=1 to abort a connecting client.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 13:57 UTC
CWE
- CWE-617 - Reachable Assertion
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.0.… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109677 (GCVE-0-2026-109677)
Vulnerability from nvd – Published: 2026-10-13 13:27 – Updated: 2026-10-13 16:44
VLAI
EPSS
VEX
Title
FreeRDP 2.0.0-beta1 before 3.28.0 Out-of-Bounds Read via LocateCardsByATRA Handler
Summary
FreeRDP from 2.0.0-beta1 before 3.28.0 contains an out-of-bounds read vulnerability in smartcard_LocateCardsByATRA_Call because the ATR pattern cbAtr byte count is not capped. Malicious RDP servers can send crafted ATR mask arrays to use query timing as an oracle, leaking heap memory bit-by-bit to defeat ASLR and aid RCE exploits.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 16:21 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://github.com/FreeRDP/FreeRDP/commit/ececc5c… | patch |
| https://www.vulncheck.com/advisories/freerdp-2.0.… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109676 (GCVE-0-2026-109676)
Vulnerability from nvd – Published: 2026-10-13 13:27 – Updated: 2026-10-13 13:27
VLAI
EPSS
VEX
Title
FreeRDP 3.0.0-beta1 before 3.32.0 Use-After-Free via Smartcard Connect
Summary
FreeRDP from 3.0.0-beta1 before 3.32.0 contains a use-after-free vulnerability in smartcard handling that allows attackers to access a freed smartcard handle object after an invalid connect operation. Attackers can trigger an invalid smartcard connect operation to cause reuse of the freed handle, leading to memory corruption or crashes.
Severity
CWE
- CWE-416 - Use After Free
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
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Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109953 (GCVE-0-2026-109953)
Vulnerability from cvelistv5 – Published: 2026-10-13 13:27 – Updated: 2026-10-13 13:27
VLAI
EPSS
VEX
Title
FreeRDP 3.0.0 before 3.32.0 Cleartext Credential Disclosure via /restricted-admin
Summary
FreeRDP 3.0.0 before 3.32.0 contains an insufficiently protected credentials vulnerability where the /restricted-admin option fails to suppress CredSSP credential delegation, sending the cleartext password to the RDP server. A compromised or man-in-the-middle destination host can decode TSPasswordCreds and the Client Info PDU to obtain reusable administrative domain, username, and password values.
Severity
CWE
- CWE-522 - Insufficiently Protected Credentials
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.0.… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109952 (GCVE-0-2026-109952)
Vulnerability from cvelistv5 – Published: 2026-10-13 13:27 – Updated: 2026-10-13 13:27
VLAI
EPSS
VEX
Title
FreeRDP 3.0.0 before 3.32.0 Security Protocol Downgrade via Negotiation Response
Summary
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Severity
CWE
- CWE-757 - Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.0.… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109951 (GCVE-0-2026-109951)
Vulnerability from cvelistv5 – Published: 2026-10-13 13:27 – Updated: 2026-10-13 13:27
VLAI
EPSS
VEX
Title
FreeRDP 3.17.1 before 3.32.0 Heap Buffer Over-Read via Proxy DRDYNVC Channel Name
Summary
FreeRDP 3.17.1 before 3.32.0 contains a heap buffer over-read vulnerability in DynvcTrackerHandleCreateBack of the freerdp-proxy DRDYNVC channel handler that allows malicious backend RDP servers to read heap memory out of bounds. Attackers can send a CREATE_REQUEST_PDU whose channel name lacks a NUL byte, causing an unbounded snprintf read that leaks memory into proxy logs or crashes the process.
Severity
5.3 (Medium)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.17… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109950 (GCVE-0-2026-109950)
Vulnerability from cvelistv5 – Published: 2026-10-13 13:27 – Updated: 2026-10-13 13:47
VLAI
EPSS
VEX
Title
FreeRDP 3.0.0 before 3.32.0 Heap Out-of-Bounds Read via RD Gateway Messages
Summary
FreeRDP from 3.0.0 before 3.32.0 contains a heap out-of-bounds read vulnerability that allows a malicious RD Gateway to crash clients by sending mismatched message lengths. Attackers controlling the gateway can set MsgBytes far larger than the NDR string ActualCount in consent or service messages, causing UTF-8 conversion to read past the stream allocation and disrupt client availability.
Severity
4.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 13:46 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
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Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109949 (GCVE-0-2026-109949)
Vulnerability from cvelistv5 – Published: 2026-10-13 13:27 – Updated: 2026-10-13 16:43
VLAI
EPSS
VEX
Title
FreeRDP 3.0.0 before 3.32.0 PIN Brute-Force via Virtual Smartcard
Summary
FreeRDP 3.0.0 before 3.32.0 contains an improper restriction of excessive authentication attempts in its virtual smartcard GIDS implementation, which stores the PIN retry counter per-handle. A malicious RDP server can exhaust the counter with VERIFY APDUs, then request a new SCardConnect to reset attempts, enabling unbounded online brute-forcing of the configured smartcard PIN.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 16:21 UTC
CWE
- CWE-307 - Improper Restriction of Excessive Authentication Attempts
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.0.… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109948 (GCVE-0-2026-109948)
Vulnerability from cvelistv5 – Published: 2026-10-13 13:27 – Updated: 2026-10-13 13:27
VLAI
EPSS
VEX
Title
FreeRDP 3.0.0 before 3.32.0 Memory Disclosure via SCardTransmit Smartcard Redirection
Summary
FreeRDP from 3.0.0 before 3.32.0 contains an uninitialized memory disclosure vulnerability in smartcard_Transmit_Call that allows malicious RDP servers to read client memory. Servers can send SCardTransmit requests with an invalid card handle and nonzero receive length, causing smartcard_pack_transmit_return to serialize up to 66,560 uninitialized heap bytes.
Severity
4.3 (Medium)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.0.… | third-party-advisory |
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2026-09-29 00:00
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CVE-2026-109947 (GCVE-0-2026-109947)
Vulnerability from cvelistv5 – Published: 2026-10-13 13:27 – Updated: 2026-10-13 13:27
VLAI
EPSS
VEX
Title
FreeRDP 3.20.1 before 3.32.0 Unbounded Allocation via drive_process_irp_read
Summary
FreeRDP from 3.20.1 before 3.32.0 contains an uncontrolled resource allocation vulnerability that allows malicious RDP servers to exhaust client memory via oversized drive redirection read requests. Attackers can send IRP_MJ_READ with Length 0xffffffff, causing roughly 4 GiB of zeroed allocation on 64-bit builds or an under-reserved buffer on 32-bit builds.
Severity
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.20… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109946 (GCVE-0-2026-109946)
Vulnerability from cvelistv5 – Published: 2026-10-13 13:27 – Updated: 2026-10-13 13:27
VLAI
EPSS
VEX
Title
FreeRDP 3.11.0 before 3.32.0 Reachable Assertion via AVC444 Odd Region Width
Summary
FreeRDP 3.11.0 before 3.32.0 does not validate that AVC444 and AVC444v2 region widths are even before YUV444 conversion, so an odd width reaches an assertion and aborts the client. A malicious or compromised RDP server can terminate a connected FreeRDP client after RDPGFX AVC444 negotiation by sending an in-bounds region rectangle with an odd width.
Severity
CWE
- CWE-617 - Reachable Assertion
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.11… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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CVE-2026-109945 (GCVE-0-2026-109945)
Vulnerability from cvelistv5 – Published: 2026-10-13 13:27 – Updated: 2026-10-13 13:54
VLAI
EPSS
VEX
Title
FreeRDP 3.0.0 before 3.32.0 Smartcard Use-After-Free via Concurrent Disconnect and Transmit
Summary
FreeRDP 3.0.0 before 3.32.0 contains a heap use-after-free vulnerability in smartcard emulation when SCARD_IOCTL_DISCONNECT and SCARD_IOCTL_TRANSMIT operate concurrently on one card handle. A malicious RDP server can overlap these IRPs through separate context workers to free and reuse the SCardHandle, causing client-process heap corruption and termination.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 13:53 UTC
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | vendor-advisory |
| https://www.vulncheck.com/advisories/freerdp-3.0.… | third-party-advisory |
Impacted products
Date Public
2026-09-29 00:00
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