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CWE-134

394 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 (394)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Fortinet
2Fortianalyzer
Fortianalyzer Cloud
Jun 17, 2026
Oct 8, 2024
N/A· v4
7.2 HIGH· v3
N/A· v2
A use of externally-controlled format string in Fortinet FortiAnalyzer versions 7.4.0 through 7.4.3, 7.2.2 through 7.2.5 allows attacker to escalate its privileges via specially crafted requests.
1Juniper
1Junos
Jun 17, 2026
Jul 11, 2024
8.7 HIGH· v4
7.5 HIGH· v3
N/A· v2
A Use of Externally-Controlled Format String vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (...Show more
A Use of Externally-Controlled Format String vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS). If DNS Domain Generation Algorithm (DGA) detection or tunnel detection, and DNS-filtering traceoptions are configured, and specific valid transit DNS traffic is received this causes a PFE crash and restart, leading to a Denial of Service. This issue affects Junos OS: * All versions before 21.4R3-S6, * 22.2 versions before 22.2R3-S3, * 22.3 versions before 22.3R3-S3, * 22.4 versions before 22.4R3, * 23.2 versions before 23.2R2.Show less
1Moxa
4Oncell G3470a Lte Eu T Firmware
Oncell G3470a Lte Eu FirmwareOncell G3470a Lte Us T Firmware+1 more
Jun 17, 2026
Jun 25, 2024
N/A· v4
9.8 CRITICAL· v3
N/A· v2
OnCell G3470A-LTE Series firmware versions v1.7.7 and prior have been identified as vulnerable due to accepting a format string from an external source as an argument. An attacker could modify an externally controlled fo...Show more
OnCell G3470A-LTE Series firmware versions v1.7.7 and prior have been identified as vulnerable due to accepting a format string from an external source as an argument. An attacker could modify an externally controlled format string to cause a memory leak and denial of service.Show less
1Actiontec
1Wcb6200q Firmware
Jun 17, 2026
Jun 19, 2024
N/A· v4
8.8 HIGH· v3
N/A· v2
Actiontec WCB6200Q Cookie Format String Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Actiontec WCB6200Q routers. Authent...Show more
Actiontec WCB6200Q Cookie Format String Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Actiontec WCB6200Q routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HTTP server. A crafted Cookie header in an HTTP request can trigger the use of a format specifier from a user-supplied string. An attacker can leverage this vulnerability to execute code in the context of the HTTP server. Was ZDI-CAN-21417.Show less
2Debian
Linux
2Debian Linux
Linux Kernel
Jun 17, 2026
May 17, 2024
N/A· v4
9.1 CRITICAL· v3
N/A· v2
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: dbg-tlv: ensure NUL termination The iwl_fw_ini_debug_info_tlv is used as a string, so we must ensure the string is terminated correctly...Show more
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: dbg-tlv: ensure NUL termination The iwl_fw_ini_debug_info_tlv is used as a string, so we must ensure the string is terminated correctly before using it.Show less
1Fortinet
4Fortios
FortipamFortiproxy+1 more
Jun 17, 2026
May 14, 2024
N/A· v4
7.2 HIGH· v3
N/A· v2
A use of externally-controlled format string vulnerability in Fortinet FortiOS 7.4.0, FortiOS 7.2.0 through 7.2.5, FortiOS 7.0 all versions, FortiOS 6.4 all versions, FortiOS 6.2 all versions, FortiOS 6.0.0 through 6.0.1...Show more
A use of externally-controlled format string vulnerability in Fortinet FortiOS 7.4.0, FortiOS 7.2.0 through 7.2.5, FortiOS 7.0 all versions, FortiOS 6.4 all versions, FortiOS 6.2 all versions, FortiOS 6.0.0 through 6.0.16, FortiPAM 1.1.0, FortiPAM 1.0 all versions, FortiProxy 7.2.0 through 7.2.5, FortiProxy 7.0.0 through 7.0.11, FortiProxy 2.0 all versions, FortiProxy 1.2 all versions, FortiProxy 1.1 all versions, FortiProxy 1.0 all versions, FortiSwitchManager 7.2.0 through 7.2.2, FortiSwitchManager 7.0.0 through 7.0.2 allows attacker to execute unauthorized code or commands via specially crafted cli commands and http requests.Show less
1Fortinet
3Fortios
FortipamFortiproxy
Jun 17, 2026
May 14, 2024
N/A· v4
6.7 MEDIUM· v3
N/A· v2
A use of externally-controlled format string vulnerability in Fortinet FortiOS 7.4.0, FortiOS 7.2.0 through 7.2.5, FortiOS 7.0 all versions, FortiOS 6.4 all versions, FortiOS 6.2 all versions, FortiOS 6.0.0 through 6.0.1...Show more
A use of externally-controlled format string vulnerability in Fortinet FortiOS 7.4.0, FortiOS 7.2.0 through 7.2.5, FortiOS 7.0 all versions, FortiOS 6.4 all versions, FortiOS 6.2 all versions, FortiOS 6.0.0 through 6.0.16, FortiPAM 1.1.0, FortiPAM 1.0 all versions, FortiProxy 7.2.0 through 7.2.5, FortiProxy 7.0.0 through 7.0.11, FortiProxy 2.0 all versions, FortiProxy 1.2 all versions, FortiProxy 1.1 all versions, FortiProxy 1.0 all versions allows attacker to execute unauthorized code or commands via specially crafted commandsShow less
1Foxit
2Pdf Editor
Pdf Reader
Jun 17, 2026
May 7, 2024
N/A· v4
5.5 MEDIUM· v3
N/A· v2
Foxit PDF Reader print Method Use of Externally-Controlled Format String Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Fox...Show more
Foxit PDF Reader print Method Use of Externally-Controlled Format String Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Foxit PDF Reader. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the implementation of the print method. The issue results from the lack of proper validation of a user-supplied string before using it as a format specifier. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-14849.Show less
-
-
Jun 17, 2026
May 3, 2024
N/A· v4
5.7 MEDIUM· v3
N/A· v2
Use of Externally-Controlled Format String vulnerability in Merge DICOM Toolkit C/C++ on Windows. When MC_Open_Association() function is used to open DICOM Association and gets DICOM Application Context Name with illega...Show more
Use of Externally-Controlled Format String vulnerability in Merge DICOM Toolkit C/C++ on Windows. When MC_Open_Association() function is used to open DICOM Association and gets DICOM Application Context Name with illegal characters, it might result in an unhandled exception.Show less
-
-
Jun 17, 2026
Apr 30, 2024
N/A· v4
8.4 HIGH· v3
N/A· v2
DMitry (Deepmagic Information Gathering Tool) 1.3a has a format-string vulnerability, with a threat model similar to CVE-2017-7938.
1Fortinet
1Fortios
Jun 17, 2026
Apr 9, 2024
N/A· v4
6.7 MEDIUM· v3
N/A· v2
A use of externally-controlled format string vulnerability [CWE-134] in FortiOS version 7.4.1 and below, version 7.2.7 and below, 7.0 all versions, 6.4 all versions command line interface may allow a local privileged att...Show more
A use of externally-controlled format string vulnerability [CWE-134] in FortiOS version 7.4.1 and below, version 7.2.7 and below, 7.0 all versions, 6.4 all versions command line interface may allow a local privileged attacker with super-admin profile and CLI access to execute arbitrary code or commands via specially crafted requests.Show less
1Fortinet
4Fortianalyzer
Fortianalyzer Big DataFortimanager+1 more
Jun 17, 2026
Mar 12, 2024
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 unauthorized code or commands via specially crafted command arguments.
1Fortinet
3Fortios
FortipamFortiproxy
Jun 17, 2026
Feb 22, 2024
N/A· v4
8.8 HIGH· v3
N/A· v2
A use of externally-controlled format string in Fortinet FortiOS 7.2.0 through 7.2.4, 7.0.0 through 7.0.11, 6.4.0 through 6.4.12, 6.2.0 through 6.2.14, 6.0.0 through 6.0.16, FortiProxy 7.2.0 through 7.2.4, 7.0.0 through...Show more
A use of externally-controlled format string in Fortinet FortiOS 7.2.0 through 7.2.4, 7.0.0 through 7.0.11, 6.4.0 through 6.4.12, 6.2.0 through 6.2.14, 6.0.0 through 6.0.16, FortiProxy 7.2.0 through 7.2.4, 7.0.0 through 7.0.10, 2.0.0 through 2.0.12, 1.2.0 through 1.2.13, 1.1.0 through 1.1.6, 1.0.0 through 1.0.7, FortiPAM 1.0.0 through 1.0.3 allows attacker to execute unauthorized code or commands via specially crafted command.Show less
1Zyxel
21Atp100 Firmware
Atp100w FirmwareAtp200 Firmware+18 more
Jun 17, 2026
Feb 20, 2024
N/A· v4
8.1 HIGH· v3
N/A· v2
A format string vulnerability in a function of the IPSec VPN feature in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG...Show more
A format string vulnerability in a function of the IPSec VPN feature in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50(W) series firmware versions from 4.16 through 5.37 Patch 1, and USG20(W)-VPN series firmware versions from 4.16 through 5.37 Patch 1 could allow an attacker to achieve unauthorized remote code execution by sending a sequence of specially crafted payloads containing an invalid pointer; however, such an attack would require detailed knowledge of an affected device’s memory layout and configuration. Show less
1Zyxel
22Atp100 Firmware
Atp100w FirmwareAtp200 Firmware+19 more
Jun 17, 2026
Feb 20, 2024
N/A· v4
6.5 MEDIUM· v3
N/A· v2
A format string vulnerability in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50(W) series firmware versions from 4.16 thro...Show more
A format string vulnerability in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50(W) series firmware versions from 4.16 through 5.37 Patch 1, USG20(W)-VPN series firmware versions from 4.16 through 5.37 Patch 1, and USG FLEX H series firmware versions from 1.10 through 1.10 Patch 1 could allow an authenticated IPSec VPN user to cause DoS conditions against the “deviceid” daemon by sending a crafted hostname to an affected device if it has the “Device Insight” feature enabled.Show less
1Fortinet
4Fortios
FortipamFortiproxy+1 more
Jun 17, 2026
Feb 15, 2024
N/A· v4
9.8 CRITICAL· v3
N/A· v2
A use of externally-controlled format string in Fortinet FortiOS versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.6, 7.0.0 through 7.0.13, FortiProxy versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.8, 7.0.0 through 7.0.14...Show more
A use of externally-controlled format string in Fortinet FortiOS versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.6, 7.0.0 through 7.0.13, FortiProxy versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.8, 7.0.0 through 7.0.14, FortiPAM versions 1.2.0, 1.1.0 through 1.1.2, 1.0.0 through 1.0.3, FortiSwitchManager versions 7.2.0 through 7.2.3, 7.0.0 through 7.0.3 allows attacker to execute unauthorized code or commands via specially crafted packets.Show less
1Gallagher
1Controller 6000 Firmware
Jun 17, 2026
Dec 18, 2023
N/A· v4
8.8 HIGH· v3
N/A· v2
A format string issue in the Controller 6000's optional diagnostic web interface can be used to write/read from memory, and in some instances crash the Controller 6000 leading to a Denial of Service. This issue affec...Show more
A format string issue in the Controller 6000's optional diagnostic web interface can be used to write/read from memory, and in some instances crash the Controller 6000 leading to a Denial of Service. This issue affects: Gallagher Controller 6000 8.60 prior to vCR8.60.231116a (distributed in 8.60.2550 (MR7)), all versions of 8.50 and prior. Show less
1Fortinet
3Fortios
FortipamFortiproxy
Jun 17, 2026
Dec 13, 2023
N/A· v4
8.8 HIGH· v3
N/A· v2
A use of externally-controlled format string in Fortinet FortiProxy versions 7.2.0 through 7.2.4, 7.0.0 through 7.0.10, FortiOS versions 7.4.0, 7.2.0 through 7.2.4, 7.0.0 through 7.0.11, 6.4.0 through 6.4.12, 6.2.0 throu...Show more
A use of externally-controlled format string in Fortinet FortiProxy versions 7.2.0 through 7.2.4, 7.0.0 through 7.0.10, FortiOS versions 7.4.0, 7.2.0 through 7.2.4, 7.0.0 through 7.0.11, 6.4.0 through 6.4.12, 6.2.0 through 6.2.15, 6.0.0 through 6.0.17, FortiPAM versions 1.0.0 through 1.0.3 allows attacker to execute unauthorized code or commands via specially crafted API requests.Show less
1Wire
1Audio, Video, And Signaling
Jun 17, 2026
Nov 20, 2023
N/A· v4
8.8 HIGH· v3
N/A· v2
wire-avs provides Audio, Visual, and Signaling (AVS) functionality sure the secure messaging software Wire. Prior to versions 9.2.22 and 9.3.5, a remote format string vulnerability could potentially allow an attacker to...Show more
wire-avs provides Audio, Visual, and Signaling (AVS) functionality sure the secure messaging software Wire. Prior to versions 9.2.22 and 9.3.5, a remote format string vulnerability could potentially allow an attacker to cause a denial of service or possibly execute arbitrary code. The issue has been fixed in wire-avs 9.2.22 & 9.3.5 and is already included on all Wire products. No known workarounds are available.Show less
1Synology
2Bc500 Firmware
Tc500 Firmware
Jun 17, 2026
Oct 25, 2023
N/A· v4
9.8 CRITICAL· v3
N/A· v2
A vulnerability regarding use of externally-controlled format string is found in the cgi component. This allows remote attackers to execute arbitrary code via unspecified vectors. The following models with Synology Camer...Show more
A vulnerability regarding use of externally-controlled format string is found in the cgi component. This allows remote attackers to execute arbitrary code via unspecified vectors. The following models with Synology Camera Firmware versions before 1.0.5-0185 may be affected: BC500 and TC500.Show less