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CWE-134

423 CVEs • Abstraction: Base • Likelihood of Exploit: High

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.

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CVEs (423)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Qnap
2Qts
Quts Hero
Oct 18, 2026
Oct 3, 2025
5.1 MEDIUM· v4
6.5 MEDIUM· v3
N/A· v2
A use of externally-controlled format string vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability...Show more
A use of externally-controlled format string vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to obtain secret data or modify memory. We have already fixed the vulnerability in the following versions: QTS 5.2.6.3195 build 20250715 and later QuTS hero h5.2.6.3195 build 20250715 and laterShow less
1Qnap
2Qts
Quts Hero
Oct 18, 2026
Oct 3, 2025
5.1 MEDIUM· v4
6.5 MEDIUM· v3
N/A· v2
A use of externally-controlled format string vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability...Show more
A use of externally-controlled format string vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to obtain secret data or modify memory. We have already fixed the vulnerability in the following versions: QTS 5.2.6.3195 build 20250715 and later QuTS hero h5.2.6.3195 build 20250715 and laterShow less
1Qnap
2Qts
Quts Hero
Oct 18, 2026
Oct 3, 2025
5.1 MEDIUM· v4
6.5 MEDIUM· v3
N/A· v2
A use of externally-controlled format string vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability...Show more
A use of externally-controlled format string vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to obtain secret data or modify memory. We have already fixed the vulnerability in the following versions: QTS 5.2.6.3195 build 20250715 and later QuTS hero h5.2.6.3195 build 20250715 and laterShow less
1Qnap
2Qts
Quts Hero
Oct 18, 2026
Oct 3, 2025
5.1 MEDIUM· v4
6.5 MEDIUM· v3
N/A· v2
A use of externally-controlled format string vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability...Show more
A use of externally-controlled format string vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to obtain secret data or modify memory. We have already fixed the vulnerability in the following versions: QTS 5.2.6.3195 build 20250715 and later QuTS hero h5.2.6.3195 build 20250715 and laterShow less
1Ibm
1Webmethods Integration
Jun 17, 2026
Sep 22, 2025
N/A· v4
8.8 HIGH· v3
N/A· v2
IBM webMethods Integration 10.15 and 11.1 could allow an authenticated user with required execute Services to execute commands on the system due to the improper validation of format string strings passed as an argument f...Show more
IBM webMethods Integration 10.15 and 11.1 could allow an authenticated user with required execute Services to execute commands on the system due to the improper validation of format string strings passed as an argument from an external source.Show less
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-
Sep 2, 2025
Aug 30, 2025
8.4 HIGH· v4
N/A· v3
N/A· v2
WM Downloader version 3.1.2.2 is vulnerable to a buffer overflow when processing a specially crafted .m3u playlist file. The application fails to properly validate input length, allowing an attacker to overwrite structur...Show more
WM Downloader version 3.1.2.2 is vulnerable to a buffer overflow when processing a specially crafted .m3u playlist file. The application fails to properly validate input length, allowing an attacker to overwrite structured exception handler (SEH) records and execute arbitrary code. Exploitation occurs locally when a user opens the malicious file, and the payload executes with the privileges of the current user.Show less
1Imagemagick
1Imagemagick
Jun 17, 2026
Aug 26, 2025
N/A· v4
8.8 HIGH· v3
N/A· v2
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to ImageMagick versions 6.9.13-28 and 7.1.2-2, a format string bug vulnerability exists in InterpretImageFilename funct...Show more
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to ImageMagick versions 6.9.13-28 and 7.1.2-2, a format string bug vulnerability exists in InterpretImageFilename function where user input is directly passed to FormatLocaleString without proper sanitization. An attacker can overwrite arbitrary memory regions, enabling a wide range of attacks from heap overflow to remote code execution. This issue has been patched in versions 6.9.13-28 and 7.1.2-2.Show less
-
-
Aug 22, 2025
Aug 20, 2025
8.7 HIGH· v4
N/A· v3
N/A· v2
Solar FTP Server fails to properly handle format strings passed to the USER command. When a specially crafted string containing format specifiers is sent, the server crashes due to a read access violation in the __output...Show more
Solar FTP Server fails to properly handle format strings passed to the USER command. When a specially crafted string containing format specifiers is sent, the server crashes due to a read access violation in the __output_1() function of sfsservice.exe. This results in a denial of service (DoS) condition.Show less
-
-
Aug 14, 2025
Aug 13, 2025
9.3 CRITICAL· v4
N/A· v3
N/A· v2
ComSndFTP FTP Server version 1.3.7 Beta contains a format string vulnerability in its handling of the USER command. By sending a specially crafted username containing format specifiers, a remote attacker can overwrite a...Show more
ComSndFTP FTP Server version 1.3.7 Beta contains a format string vulnerability in its handling of the USER command. By sending a specially crafted username containing format specifiers, a remote attacker can overwrite a hardcoded function pointer in memory (specifically WSACleanup from Ws2_32.dll). This allows the attacker to redirect execution flow and bypass DEP protections using a ROP chain, ultimately leading to arbitrary code execution. The vulnerability is exploitable without authentication and affects default configurations.Show less
1Sonicwall
1Sonicos
Jun 17, 2026
Jul 29, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Use of Externally-Controlled Format String vulnerability in the SonicOS SSL VPN interface allows a remote unauthenticated attacker to cause service disruption.
1Ruckuswireless
2Ruckus Unleashed
Ruckus Zonedirector
Jun 17, 2026
Jul 21, 2025
N/A· v4
7.2 HIGH· v3
N/A· v2
An issue was discovered in CommScope Ruckus Unleashed prior to 200.15.6.212.14 and 200.17.7.0.139, and in Ruckus ZoneDirector prior to 10.5.1.0.279, where the authenticated configuration endpoint `/admin/_conf.jsp` write...Show more
An issue was discovered in CommScope Ruckus Unleashed prior to 200.15.6.212.14 and 200.17.7.0.139, and in Ruckus ZoneDirector prior to 10.5.1.0.279, where the authenticated configuration endpoint `/admin/_conf.jsp` writes the Wi-Fi guest password to memory with snprintf using the attacker-supplied value as the format string; a crafted password therefore triggers uncontrolled format-string processing and enables remote code execution on the controller.Show less
1Ruckuswireless
2Ruckus Unleashed
Ruckus Zonedirector
Jun 17, 2026
Jul 21, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
An issue was discovered in CommScope Ruckus Unleashed prior to 200.15.6.212.14 and 200.17.7.0.139, where the functions `stamgr_cfg_adpt_addStaFavourite` and `stamgr_cfg_adpt_addStaIot` pass a client hostname directly to...Show more
An issue was discovered in CommScope Ruckus Unleashed prior to 200.15.6.212.14 and 200.17.7.0.139, where the functions `stamgr_cfg_adpt_addStaFavourite` and `stamgr_cfg_adpt_addStaIot` pass a client hostname directly to snprintf as the format string. A remote attacker can exploit this flaw either by sending a crafted request to the authenticated endpoint `/admin/_conf.jsp`, or without authentication and without direct network access to the controller by spoofing the MAC address of a favourite station and embedding malicious format specifiers in the DHCP hostname field, resulting in unauthenticated format-string processing and arbitrary code execution on the controller.Show less
1Qnap
1Qsync Central
Jun 17, 2026
Jun 6, 2025
2.3 LOW· v4
8.1 HIGH· v3
N/A· v2
A use of externally-controlled format string vulnerability has been reported to affect Qsync Central. If exploited, the vulnerability could allow remote attackers who have gained user access to obtain secret data or modi...Show more
A use of externally-controlled format string vulnerability has been reported to affect Qsync Central. If exploited, the vulnerability could allow remote attackers who have gained user access to obtain secret data or modify memory. We have already fixed the vulnerability in the following version: Qsync Central 4.5.0.6 ( 2025/03/20 ) and laterShow less
1Freescout
1Freescout
Jun 17, 2026
May 29, 2025
7.0 HIGH· v4
6.5 MEDIUM· v3
N/A· v2
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.178, the application performs insufficient validation of user-supplied data, which is used as arguments to string formatting functions. A...Show more
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.178, the application performs insufficient validation of user-supplied data, which is used as arguments to string formatting functions. As a result, an attacker can pass a string containing special symbols (\r, \n, \t)to the application. This issue has been patched in version 1.8.178.Show less
1Fortinet
5Fortios
FortipamFortiproxy+2 more
Jun 17, 2026
Mar 11, 2025
N/A· v4
7.2 HIGH· v3
N/A· v2
A use of externally-controlled format string vulnerability [CWE-134] in FortiOS version 7.4.0 through 7.4.4, version 7.2.0 through 7.2.9, version 7.0.0 through 7.0.15 and before 6.4.15, FortiProxy version 7.4.0 through 7...Show more
A use of externally-controlled format string vulnerability [CWE-134] in FortiOS version 7.4.0 through 7.4.4, version 7.2.0 through 7.2.9, version 7.0.0 through 7.0.15 and before 6.4.15, FortiProxy version 7.4.0 through 7.4.6, version 7.2.0 through 7.2.12 and before 7.0.19, FortiPAM version 1.4.0 through 1.4.2 and before 1.3.1, FortiSRA version 1.4.0 through 1.4.2 and before 1.3.1 and FortiWeb version 7.4.0 through 7.4.5, version 7.2.0 through 7.2.10 and before 7.0.10 allows a privileged attacker to execute unauthorized code or commands via specially crafted HTTP or HTTPS commands.Show less
-
-
Jun 17, 2026
Feb 21, 2025
N/A· v4
5.5 MEDIUM· v3
N/A· v2
An XML External Entity (XXE) vulnerability in the deserializeArgs() method of Java SDK for CloudEvents v4.0.1 allows attackers to access sensitive information via supplying a crafted XML-formatted event message.
1Fortinet
4Fortios
FortipamFortiproxy+1 more
Jun 17, 2026
Feb 11, 2025
N/A· v4
6.7 MEDIUM· v3
N/A· v2
A use of externally-controlled format string vulnerability [CWE-134] vulnerability in Fortinet allows a privileged attacker to execute arbitrary code or commands via specially crafted requests.
-
-
Jun 17, 2026
Jan 24, 2025
N/A· v4
8.4 HIGH· v3
N/A· v2
ASTEVAL is an evaluator of Python expressions and statements. Prior to version 1.0.6, if an attacker can control the input to the `asteval` library, they can bypass asteval's restrictions and execute arbitrary Python cod...Show more
ASTEVAL is an evaluator of Python expressions and statements. Prior to version 1.0.6, if an attacker can control the input to the `asteval` library, they can bypass asteval's restrictions and execute arbitrary Python code in the context of the application using the library. The vulnerability is rooted in how `asteval` performs handling of `FormattedValue` AST nodes. In particular, the `on_formattedvalue` value uses the dangerous format method of the str class. The code allows an attacker to manipulate the value of the string used in the dangerous call `fmt.format(__fstring__=val)`. This vulnerability can be exploited to access protected attributes by intentionally triggering an `AttributeError` exception. The attacker can then catch the exception and use its `obj` attribute to gain arbitrary access to sensitive or protected object properties. Version 1.0.6 fixes this issue.Show less
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-
Jun 17, 2026
Jan 9, 2025
N/A· v4
7.2 HIGH· v3
N/A· v2
A post-authentication format string vulnerability in SonicOS management allows a remote attacker to crash a firewall and potentially leads to code execution.
1Qnap
2Qts
Quts Hero
Jun 17, 2026
Dec 6, 2024
2.1 LOW· v4
7.2 HIGH· v3
N/A· v2
A use of externally-controlled format string vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow remote attackers who have gained administrator ac...Show more
A use of externally-controlled format string vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow remote attackers who have gained administrator access to obtain secret data or modify memory. We have already fixed the vulnerability in the following versions: QTS 5.2.2.2950 build 20241114 and later QuTS hero h5.2.2.2952 build 20241116 and laterShow less