Common Weakness Enumeration

CWE-122

Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

CVE-2026-5653 (GCVE-0-2026-5653)

Vulnerability from cvelistv5 – Published: 2026-04-30 05:38 – Updated: 2026-04-30 12:51
VLAI
Title
Heap-based Buffer Overflow in Wireshark
Summary
DCP-ETSI protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
Wireshark Foundation Wireshark Affected: 4.6.0 , < 4.6.5 (semver)
Affected: 4.4.0 , < 4.4.15 (semver)
Create a notification for this product.
Credits
Alexandre de Oliveira
Show details on NVD website
To clipboard 

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CVE-2026-56645 (GCVE-0-2026-56645)

Vulnerability from cvelistv5 – Published: 2026-07-03 20:35 – Updated: 2026-07-11 20:55
VLAI
Title
Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
Summary
Heap-based buffer overflow in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
Microsoft Microsoft Edge (Chromium-based) Affected: 1.0.0.0 , < 150.0.4078.48 (custom)
Create a notification for this product.
Date Public
2026-07-03 14:00
Show details on NVD website
To clipboard 

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CVE-2026-56789 (GCVE-0-2026-56789)

Vulnerability from cvelistv5 – Published: 2026-06-25 18:14 – Updated: 2026-06-25 18:26 X_Open Source
VLAI
Title
RTKLIB 2.4.3 - Heap Buffer Overflow and Stack Read via Oversized RINEX Epoch Satellite Count
Summary
RTKLIB through 2.4.3 contains a heap buffer overflow vulnerability in the readrnxobsb function in src/rinex.c that allows attackers to trigger memory corruption by failing to clamp satellite count values from RINEX epoch headers. Attackers can craft malicious RINEX files declaring more than 64 satellites per epoch to cause heap buffer overflow writes and out-of-bounds stack reads, crashing RTKLIB-based applications including rnx2rtkp and RTKPOST.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
tomojitakasu RTKLIB Affected: 0 , ≤ 2.4.3 (semver)
Create a notification for this product.
Date Public
2026-06-09 00:00
Credits
FuzzingLabs
Show details on NVD website
To clipboard 

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CVE-2026-57156 (GCVE-0-2026-57156)

Vulnerability from cvelistv5 – Published: 2026-07-10 19:52 – Updated: 2026-07-10 19:52
VLAI
Title
FreeRDP: Integer overflow leading to heap buffer overflow in Orders Delta Points parsing
Summary
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.28.0 on 32-bit builds, FreeRDP clients contain an integer overflow in update_read_delta_points in libfreerdp/core/orders.c when multiplying an attacker-controlled point count by sizeof(DELTA_POINT), allowing a malicious RDP peer to allocate an undersized heap buffer and then write beyond it during initialization. This issue is fixed in version 3.28.0.
Severity
8.6 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-122 - Heap-based Buffer Overflow
  • CWE-190 - Integer Overflow or Wraparound
Assigner
References
Impacted products
Vendor Product Version
FreeRDP FreeRDP Affected: < 3.28.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-58306 (GCVE-0-2026-58306)

Vulnerability from cvelistv5 – Published: 2026-07-09 09:56 – Updated: 2026-07-09 12:10
VLAI
Summary
Heap-based buffer overflow vulnerability in Samsung Open Source Escargot allows Overflow Buffers. This issue affects Escargot: before ef525f337fafddecde77a3c426212a84bb20cb98.
Severity
6.1 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-122 - Heap-based buffer overflow
Assigner
References
Impacted products
Vendor Product Version
Samsung Open Source Escargot Affected: 0 , < ef525f337fafddecde77a3c426212a84bb20cb98 (git)
Create a notification for this product.
Credits
Name: Francesco Lucarini
Show details on NVD website
To clipboard 

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CVE-2026-58379 (GCVE-0-2026-58379)

Vulnerability from cvelistv5 – Published: 2026-07-03 18:29 – Updated: 2026-07-07 17:01
VLAI
Title
Gimp: gimp: heap buffer overflow in read_channel_data()
Summary
A flaw was found in GIMP's Paint Shop Pro (PSP) file format parser. This heap buffer overflow vulnerability allows a remote attacker to cause arbitrary code execution or a denial of service (DoS) by tricking a user into opening a specially crafted PSP image file. The vulnerability occurs because the software incorrectly calculates buffer sizes when processing low bit-depth images, leading to an overwrite of adjacent memory.
Severity
7.3 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
Date Public
2026-04-11 00:00
Credits
Red Hat would like to thank bb1abu for reporting this issue.
Show details on NVD website
To clipboard 

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CVE-2026-58471 (GCVE-0-2026-58471)

Vulnerability from cvelistv5 – Published: 2026-07-07 19:47 – Updated: 2026-07-08 19:39 X_Open Source
VLAI
Title
GNU Wget 1.25.0 Heap Buffer Overflow via convert_fname() in url.c
Summary
GNU Wget through 1.25.0, fixed in commit c2640fe, contains a heap buffer overflow vulnerability in the convert_fname() function within src/url.c that allows remote attackers to trigger memory corruption through a server-supplied filename requiring character set conversion. When the output buffer is too small during iconv E2BIG reallocation, the reallocation logic miscalculates the remaining space, leading to a heap buffer overflow that can be exploited via a maliciously crafted server response.
Severity
6 (Medium)
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
gnuwget wget Affected: 0 , ≤ 1.25.0 (semver)
Unaffected: c2640fe5171c59f87c58dc9fcb195b2d18b010ee (git)
Create a notification for this product.
Date Public
2026-01-13 00:00
Credits
Tristan Madani Arkadi Vainbrand
Show details on NVD website
To clipboard 

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CVE-2026-6210 (GCVE-0-2026-6210)

Vulnerability from cvelistv5 – Published: 2026-05-06 11:59 – Updated: 2026-05-06 13:11
VLAI
Title
Type confusion and heap-buffer-overflow in Qt SVG marker handling causing application crash
Summary
A type confusion vulnerability in Qt SVG allows an attacker to cause an application crash via a crafted SVG image. When processing SVG marker references, the renderer retrieves a node by its id attribute and casts it to QSvgMarker* without verifying the node type. A non-marker element (such as a <line> element) that references itself as a marker triggers an out-of-bounds heap read due to the object size difference between QSvgLine and QSvgMarker, followed by an endless recursion that bypasses the marker recursion guard through incorrect virtual dispatch. The result is an application crash (denial of service). This issue affects Qt SVG:  from 6.7.0 before 6.8.8, from 6.9.0 before 6.11.1.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
The Qt Company Qt Affected: 6.7.0 , < 6.8.8 (python)
Affected: 6.9.0 , < 6.11.1 (python)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-6491 (GCVE-0-2026-6491)

Vulnerability from cvelistv5 – Published: 2026-04-17 13:45 – Updated: 2026-04-18 02:59
VLAI
Title
libvips nip2 vips7compat.c im_minpos_vec heap-based overflow
Summary
A security vulnerability has been detected in libvips up to 8.18.2. The affected element is the function im_minpos_vec of the file libvips/deprecated/vips7compat.c of the component nip2 Handler. Such manipulation of the argument n leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed publicly and may be used. The vendor confirms that they will "be removing the deprecated area in libvips 8.19".
Severity
4.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
5.3 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:T/RC:C
5.3 (Medium)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:T/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a libvips Affected: 8.18.0
Affected: 8.18.1
Affected: 8.18.2
    cpe:2.3:a:libvips:libvips:*:*:*:*:*:*:*:*
Credits
biniam (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-6529 (GCVE-0-2026-6529)

Vulnerability from cvelistv5 – Published: 2026-04-30 05:36 – Updated: 2026-04-30 15:19
VLAI
Title
Heap-based Buffer Overflow in Wireshark
Summary
iLBC audio codec crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
Wireshark Foundation Wireshark Affected: 4.6.0 , < 4.6.5 (semver)
Affected: 4.4.0 , < 4.4.15 (semver)
Create a notification for this product.
Credits
Alexandre de Oliveira
Show details on NVD website
To clipboard 

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Mitigation

Phases:

Description:

  • Pre-design: Use a language or compiler that performs automatic bounds checking.
Mitigation

Phase: Architecture and Design

Description:

  • Use an abstraction library to abstract away risky APIs. Not a complete solution.
Mitigation ID: MIT-10

Phases: Operation, Build and Compilation

Strategy: Environment Hardening

Description:

  • Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking.
  • D3-SFCV (Stack Frame Canary Validation) from D3FEND [REF-1334] discusses canary-based detection in detail.
Mitigation ID: MIT-11

Phases: Operation, Build and Compilation

Strategy: Environment Hardening

Description:

  • Run or compile the software using features or extensions that randomly arrange the positions of a program's executable and libraries in memory. Because this makes the addresses unpredictable, it can prevent an attacker from reliably jumping to exploitable code.
  • Examples include Address Space Layout Randomization (ASLR) [REF-58] [REF-60] and Position-Independent Executables (PIE) [REF-64]. Imported modules may be similarly realigned if their default memory addresses conflict with other modules, in a process known as "rebasing" (for Windows) and "prelinking" (for Linux) [REF-1332] using randomly generated addresses. ASLR for libraries cannot be used in conjunction with prelink since it would require relocating the libraries at run-time, defeating the whole purpose of prelinking.
  • For more information on these techniques see D3-SAOR (Segment Address Offset Randomization) from D3FEND [REF-1335].
Mitigation

Phase: Implementation

Description:

  • Implement and perform bounds checking on input.
Mitigation

Phase: Implementation

Strategy: Libraries or Frameworks

Description:

  • Do not use dangerous functions such as gets. Look for their safe equivalent, which checks for the boundary.
Mitigation

Phase: Operation

Description:

  • Use OS-level preventative functionality. This is not a complete solution, but it provides some defense in depth.
CAPEC-92: Forced Integer Overflow

This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.

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