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CWE-134
Use of Externally-Controlled Format String
The product uses a function that accepts a format string as an argument, but the format string originates from an external source.
CVE-2026-12174 (GCVE-0-2026-12174)
Vulnerability from cvelistv5 – Published: 2026-06-13 20:15 – Updated: 2026-06-15 17:02
VLAI
Title
D-Link DCS-935L HTTP rhea snprintf format string
Summary
A security vulnerability has been detected in D-Link DCS-935L 1.10.01. This issue affects the function snprintf of the file /web/cgi-bin/greece/rhea of the component HTTP Handler. Such manipulation of the argument data leads to format string. The attack may be launched remotely. The exploit has been disclosed publicly and may be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/370815 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/370815/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-12174 | third-party-advisory |
| https://vuldb.com/submit/837209 | third-party-advisory |
| https://github.com/Real-Simplicity/cve-database/t… | exploit |
| https://www.dlink.com/ | product |
Impacted products
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CVE-2026-22190 (GCVE-0-2026-22190)
Vulnerability from cvelistv5 – Published: 2026-01-07 20:25 – Updated: 2026-05-26 11:51
VLAI
Title
Panda3D <= 1.10.16 egg-mkfont Format String Information Disclosure
Summary
The egg-mkfont utility in Panda3D versions up to and including 1.10.16 contains an uncontrolled format string vulnerability. The -gp (glyph pattern) command-line option is used directly as the format string for sprintf() with only a single argument supplied. If an attacker provides additional format specifiers, egg-mkfont may read unintended stack values and write the formatted output into generated .egg and .png files, resulting in disclosure of stack-resident memory and pointer values.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-134 - Use of Externally-Controlled Format String
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://seclists.org/fulldisclosure/2026/Jan/11 | technical-descriptionexploit |
| https://www.panda3d.org/ | product |
| https://github.com/panda3d/panda3d | product |
| https://www.vulncheck.com/advisories/panda3d-egg-… | third-party-advisory |
Credits
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CVE-2026-33210 (GCVE-0-2026-33210)
Vulnerability from cvelistv5 – Published: 2026-03-20 22:57 – Updated: 2026-03-23 21:41
VLAI
Title
Ruby JSON has a format string injection vulnerability
Summary
Ruby JSON is a JSON implementation for Ruby. From version 2.14.0 to before versions 2.15.2.1, 2.17.1.2, and 2.19.2, a format string injection vulnerability can lead to denial of service attacks or information disclosure, when the allow_duplicate_key: false parsing option is used to parse user supplied documents. This issue has been patched in versions 2.15.2.1, 2.17.1.2, and 2.19.2.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-134 - Use of Externally-Controlled Format String
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/ruby/json/security/advisories/… | x_refsource_CONFIRM |
Impacted products
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CVE-2026-3509 (GCVE-0-2026-3509)
Vulnerability from cvelistv5 – Published: 2026-03-24 07:42 – Updated: 2026-03-26 12:35
VLAI
Title
CODESYS Control Audit Log Format String DoS
Summary
An unauthenticated remote attacker may be able to control the format string of messages processed by the Audit Log of the CODESYS Control runtime system, potentially resulting in a denial‑of‑service (DoS) condition.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-134 - Use of Externally-Controlled Format String
Assigner
References
1 reference
Impacted products
15 products
| Vendor | Product | Version | |
|---|---|---|---|
| CODESYS | CODESYS Control RTE (SL) |
Affected:
3.5.17.0 , < 3.5.22.0
(semver)
|
|
| CODESYS | CODESYS Control RTE (for Beckhoff CX) SL |
Affected:
3.5.17.0 , < 3.5.22.0
(semver)
|
|
| CODESYS | CODESYS Control Win (SL) |
Affected:
3.5.17.0 , < 3.5.22.0
(semver)
|
|
| CODESYS | CODESYS Runtime Toolkit |
Affected:
3.5.17.0 , < 3.5.22.0
(semver)
|
|
| CODESYS | CODESYS Control for BeagleBone SL |
Affected:
4.1.0.0 , < 4.21.0.0
(semver)
|
|
| CODESYS | CODESYS Control for emPC-A/iMX6 SL |
Affected:
4.1.0.0 , < 4.21.0.0
(semver)
|
|
| CODESYS | CODESYS Control for IOT2000 SL |
Affected:
4.1.0.0 , < 4.21.0.0
(semver)
|
|
| CODESYS | CODESYS Control for Linux ARM SL |
Affected:
4.1.0.0 , < 4.21.0.0
(semver)
|
|
| CODESYS | CODESYS Control for Linux SL |
Affected:
4.1.0.0 , < 4.21.0.0
(semver)
|
|
| CODESYS | CODESYS Control for PFC100 SL |
Affected:
4.1.0.0 , < 4.21.0.0
(semver)
|
|
| CODESYS | CODESYS Control for PFC200 SL |
Affected:
4.1.0.0 , < 4.21.0.0
(semver)
|
|
| CODESYS | CODESYS Control for PLCnext SL |
Affected:
4.1.0.0 , < 4.21.0.0
(semver)
|
|
| CODESYS | CODESYS Control for Raspberry Pi SL |
Affected:
4.1.0.0 , < 4.21.0.0
(semver)
|
|
| CODESYS | CODESYS Control for WAGO Touch Panels 600 SL |
Affected:
4.1.0.0 , < 4.21.0.0
(semver)
|
|
| CODESYS | CODESYS Virtual Control SL |
Affected:
4.1.0.0 , < 4.21.0.0
(semver)
|
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CVE-2026-44407 (GCVE-0-2026-44407)
Vulnerability from cvelistv5 – Published: 2026-05-07 07:33 – Updated: 2026-05-07 13:40
VLAI
Title
Remote Denial of Service Vulnerability Exists in ZTE Cloud PC Client uSmartview
Summary
A remote denial-of-service vulnerability exists in the ZTE Cloud PC client uSmartview, which may lead to memory corruption and remote denial of service.
Severity
4.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-134 - Use of Externally-Controlled format string
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ZTE | ZXCLOUD iRAI |
Affected:
ZXCLOUD-iRAI-ClientV7.2X
|
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CVE-2026-50211 (GCVE-0-2026-50211)
Vulnerability from cvelistv5 – Published: 2026-06-04 07:28 – Updated: 2026-06-04 12:43
VLAI
Title
Exposed Factory Testing App Boundaries
Summary
Leftover engineering diagnostics and factory-level diagnostic software remain exposed on retail builds, giving malicious apps write privileges to internal NVRAM registers.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-134 - Use of Externally-Controlled Format String
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Acer | Connect M6E 5G Portable WiFi Router |
Affected:
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(custom)
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CVE-2026-6241 (GCVE-0-2026-6241)
Vulnerability from cvelistv5 – Published: 2026-06-05 23:52 – Updated: 2026-06-08 13:06
VLAI
Title
Authenticated Format String Vulnerability in ONVIF AddScopes Method on TP-Link Tapo C520WS
Summary
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Successful exploitation may cause the ONVIF management service to crash, resulting in DoS condition that impacts normal device operation.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-134 - Use of Externally-Controlled format string
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.tp-link.com/us/support/download/tapo-… | patch |
| https://www.tp-link.com/en/support/download/tapo-… | patch |
| https://www.tp-link.com/us/support/faq/5120/ | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TP-Link Systems Inc. | Tapo C520WS v2 |
Affected:
0 , < 1.2.6 Build 260528
(custom)
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CVE-2026-6242 (GCVE-0-2026-6242)
Vulnerability from cvelistv5 – Published: 2026-06-05 23:52 – Updated: 2026-06-08 13:17
VLAI
Title
Authenticated Format String Vulnerability in ONVIF Subscribe Service on TP-Link Tapo C520WS
Summary
An authenticated format string vulnerability exists in the ONVIF Subscribe service in Tapo C520WS v2 due to improper handling of externally supplied parameters within formatting functions. An attacker may inject crafted format strings into event subscription requests or notification generation path to disrupt normal service execution.
Successful exploitation may cause the event notification service to terminate unexpectedly, resulting in the loss of real-time alarm functionality and disruption of event notifications.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-134 - Use of Externally-Controlled format string
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.tp-link.com/us/support/download/tapo-… | patch |
| https://www.tp-link.com/en/support/download/tapo-… | patch |
| https://www.tp-link.com/us/support/faq/5120/ | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TP-Link Systems Inc. | Tapo C520WS v2 |
Affected:
0 , < 1.2.6 Build 260528
(custom)
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CVE-2026-6250 (GCVE-0-2026-6250)
Vulnerability from cvelistv5 – Published: 2026-06-11 20:46 – Updated: 2026-06-12 15:41
VLAI
Title
Authenticated Format String Injection on TP-Link Tapo C110
Summary
An
authenticated format string vulnerability exists in the ONVIF service of Tapo
C110 v2 due to improper handling of user-controlled input. Externally controlled data is interpreted as
a format string, which can be used to manipulate stack memory, including
control flow data such as return addresses.
A remote
authenticated attacker may redirect execution flow to existing internal
functions, triggering an unauthorized factory reset, leading to loss of
configuration, deletion of stored credentials and service disruption.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-134 - Use of Externally-Controlled format string
Assigner
References
4 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TP-Link Systems Inc. | Tapo C110 v2 |
Affected:
0 , < 1.5.4 Build 260428
(custom)
|
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CVE-2026-6474 (GCVE-0-2026-6474)
Vulnerability from cvelistv5 – Published: 2026-05-14 13:00 – Updated: 2026-05-14 15:30
VLAI
Title
PostgreSQL timeofday() can disclose portions of server memory
Summary
Externally-controlled format string in PostgreSQL timeofday() function allows an attacker to retrieve portions of server memory, via crafted timezone zones. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-134 - Use of Externally-Controlled Format String
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | PostgreSQL |
Affected:
18 , < 18.4
(rpm)
Affected: 17 , < 17.10 (rpm) Affected: 16 , < 16.14 (rpm) Affected: 15 , < 15.18 (rpm) Affected: 0 , < 14.23 (rpm) |
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Mitigation
Phase: Requirements
Description:
- Choose a language that is not subject to this flaw.
Mitigation
Phase: Implementation
Description:
- Ensure that all format string functions are passed a static string which cannot be controlled by the user, and that the proper number of arguments are always sent to that function as well. If at all possible, use functions that do not support the %n operator in format strings. [REF-116] [REF-117]
Mitigation
Phase: Build and Compilation
Description:
- Run compilers and linkers with high warning levels, since they may detect incorrect usage.
CAPEC-135: Format String Injection
An adversary includes formatting characters in a string input field on the target application. Most applications assume that users will provide static text and may respond unpredictably to the presence of formatting character. For example, in certain functions of the C programming languages such as printf, the formatting character %s will print the contents of a memory location expecting this location to identify a string and the formatting character %n prints the number of DWORD written in the memory. An adversary can use this to read or write to memory locations or files, or simply to manipulate the value of the resulting text in unexpected ways. Reading or writing memory may result in program crashes and writing memory could result in the execution of arbitrary code if the adversary can write to the program stack.
CAPEC-67: String Format Overflow in syslog()
This attack targets applications and software that uses the syslog() function insecurely. If an application does not explicitely use a format string parameter in a call to syslog(), user input can be placed in the format string parameter leading to a format string injection attack. Adversaries can then inject malicious format string commands into the function call leading to a buffer overflow. There are many reported software vulnerabilities with the root cause being a misuse of the syslog() function.