CWE-134
AllowedUse of Externally-Controlled Format String
Abstraction: Base · Status: Draft
The product uses a function that accepts a format string as an argument, but the format string originates from an external source.
501 vulnerabilities reference this CWE, most recent first.
GHSA-5HFC-MJWC-89XW
Vulnerability from github – Published: 2022-08-06 00:00 – Updated: 2022-08-12 00:01A format string vulnerability [CWE-134] in the command line interpreter of FortiADC version 6.0.0 through 6.0.4, FortiADC version 6.1.0 through 6.1.5, FortiADC version 6.2.0 through 6.2.1, FortiProxy version 1.0.0 through 1.0.7, FortiProxy version 1.1.0 through 1.1.6, FortiProxy version 1.2.0 through 1.2.13, FortiProxy version 2.0.0 through 2.0.7, FortiProxy version 7.0.0 through 7.0.1, FortiOS version 6.0.0 through 6.0.14, FortiOS version 6.2.0 through 6.2.10, FortiOS version 6.4.0 through 6.4.8, FortiOS version 7.0.0 through 7.0.2, FortiMail version 6.4.0 through 6.4.5, FortiMail version 7.0.0 through 7.0.2 may allow an authenticated user to execute unauthorized code or commands via specially crafted command arguments.
{
"affected": [],
"aliases": [
"CVE-2022-22299"
],
"database_specific": {
"cwe_ids": [
"CWE-134"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-08-05T20:15:00Z",
"severity": "HIGH"
},
"details": "A format string vulnerability [CWE-134] in the command line interpreter of FortiADC version 6.0.0 through 6.0.4, FortiADC version 6.1.0 through 6.1.5, FortiADC version 6.2.0 through 6.2.1, FortiProxy version 1.0.0 through 1.0.7, FortiProxy version 1.1.0 through 1.1.6, FortiProxy version 1.2.0 through 1.2.13, FortiProxy version 2.0.0 through 2.0.7, FortiProxy version 7.0.0 through 7.0.1, FortiOS version 6.0.0 through 6.0.14, FortiOS version 6.2.0 through 6.2.10, FortiOS version 6.4.0 through 6.4.8, FortiOS version 7.0.0 through 7.0.2, FortiMail version 6.4.0 through 6.4.5, FortiMail version 7.0.0 through 7.0.2 may allow an authenticated user to execute unauthorized code or commands via specially crafted command arguments.",
"id": "GHSA-5hfc-mjwc-89xw",
"modified": "2022-08-12T00:01:19Z",
"published": "2022-08-06T00:00:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-22299"
},
{
"type": "WEB",
"url": "https://fortiguard.com/psirt/FG-IR-21-235"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-5HWP-HCWG-RRJP
Vulnerability from github – Published: 2022-05-24 17:19 – Updated: 2022-05-24 17:19AnyDesk before 5.5.3 on Linux and FreeBSD has a format string vulnerability that can be exploited for remote code execution.
{
"affected": [],
"aliases": [
"CVE-2020-13160"
],
"database_specific": {
"cwe_ids": [
"CWE-134"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-06-09T17:15:00Z",
"severity": "HIGH"
},
"details": "AnyDesk before 5.5.3 on Linux and FreeBSD has a format string vulnerability that can be exploited for remote code execution.",
"id": "GHSA-5hwp-hcwg-rrjp",
"modified": "2022-05-24T17:19:36Z",
"published": "2022-05-24T17:19:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-13160"
},
{
"type": "WEB",
"url": "https://devel0pment.de/?p=1881"
},
{
"type": "WEB",
"url": "https://download.anydesk.com/changelog.txt"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/158291/AnyDesk-GUI-Format-String-Write.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/161628/AnyDesk-5.5.2-Remote-Code-Execution.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-5JCW-5GH7-Q3J5
Vulnerability from github – Published: 2025-07-21 15:30 – Updated: 2025-07-24 21:30An 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.
{
"affected": [],
"aliases": [
"CVE-2025-46123"
],
"database_specific": {
"cwe_ids": [
"CWE-134"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-21T15:15:28Z",
"severity": "HIGH"
},
"details": "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.",
"id": "GHSA-5jcw-5gh7-q3j5",
"modified": "2025-07-24T21:30:39Z",
"published": "2025-07-21T15:30:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-46123"
},
{
"type": "WEB",
"url": "https://sector7.computest.nl/post/2025-07-ruckus-unleashed"
},
{
"type": "WEB",
"url": "https://support.ruckuswireless.com/security_bulletins/330"
},
{
"type": "WEB",
"url": "http://commscope.com"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-5RP4-749P-VX26
Vulnerability from github – Published: 2022-09-22 22:40 – Updated: 2024-09-11 18:30In Apache Airflow 2.3.0 through 2.3.4, part of a url was unnecessarily formatted, allowing for possible information extraction.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "apache-airflow"
},
"ranges": [
{
"events": [
{
"introduced": "2.3.0"
},
{
"fixed": "2.4.0rc1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2022-40604"
],
"database_specific": {
"cwe_ids": [
"CWE-134"
],
"github_reviewed": true,
"github_reviewed_at": "2022-09-22T22:40:27Z",
"nvd_published_at": "2022-09-21T08:15:00Z",
"severity": "HIGH"
},
"details": "In Apache Airflow 2.3.0 through 2.3.4, part of a url was unnecessarily formatted, allowing for possible information extraction.",
"id": "GHSA-5rp4-749p-vx26",
"modified": "2024-09-11T18:30:25Z",
"published": "2022-09-22T22:40:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-40604"
},
{
"type": "WEB",
"url": "https://github.com/apache/airflow/pull/26337"
},
{
"type": "WEB",
"url": "https://github.com/apache/airflow/commit/18386026c28939fa6d91d198c5489c295a05dcd2"
},
{
"type": "WEB",
"url": "https://github.com/apache/airflow/commit/6f24836e5ee56c452947aa87f84a21dd4f8eb87c"
},
{
"type": "PACKAGE",
"url": "https://github.com/apache/airflow"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow/PYSEC-2022-279.yaml"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread/z20x8m16fnhxdkoollv53w1ybsts687t"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Apache Airflow vulnerable to Use of Externally-Controlled Format String"
}
GHSA-5W9J-2M47-GV2X
Vulnerability from github – Published: 2022-05-24 16:48 – Updated: 2022-12-01 00:30The ABB IDAL FTP server mishandles format strings in a username during the authentication process. Attempting to authenticate with the username %s%p%x%d will crash the server. Sending %08x.AAAA.%08x.%08x will log memory content from the stack.
{
"affected": [],
"aliases": [
"CVE-2019-7230"
],
"database_specific": {
"cwe_ids": [
"CWE-134"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-06-24T17:15:00Z",
"severity": "HIGH"
},
"details": "The ABB IDAL FTP server mishandles format strings in a username during the authentication process. Attempting to authenticate with the username %s%p%x%d will crash the server. Sending %08x.AAAA.%08x.%08x will log memory content from the stack.",
"id": "GHSA-5w9j-2m47-gv2x",
"modified": "2022-12-01T00:30:42Z",
"published": "2022-05-24T16:48:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-7230"
},
{
"type": "WEB",
"url": "https://search.abb.com/library/Download.aspx?DocumentID=3ADR010377\u0026LanguageCode=en\u0026DocumentPartId=\u0026Action=Launch"
},
{
"type": "WEB",
"url": "https://www.darkmatter.ae/xen1thlabs/published-advisories"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/153386/ABB-IDAL-FTP-Server-Uncontrolled-Format-String.html"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2019/Jun/33"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/108886"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-5WMV-3F82-PWW3
Vulnerability from github – Published: 2022-05-14 01:14 – Updated: 2022-05-14 01:14An issue was discovered in the Interpeak IPCOMShell TELNET server on Green Hills INTEGRITY RTOS 5.0.4. The main shell handler function uses the value of the environment variable ipcom.shell.greeting as the first argument to printf(). Setting this variable using the sysvar command results in a user-controlled format string during login, resulting in an information leak of memory addresses.
{
"affected": [],
"aliases": [
"CVE-2019-7715"
],
"database_specific": {
"cwe_ids": [
"CWE-134"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-03-26T02:29:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in the Interpeak IPCOMShell TELNET server on Green Hills INTEGRITY RTOS 5.0.4. The main shell handler function uses the value of the environment variable ipcom.shell.greeting as the first argument to printf(). Setting this variable using the sysvar command results in a user-controlled format string during login, resulting in an information leak of memory addresses.",
"id": "GHSA-5wmv-3f82-pww3",
"modified": "2022-05-14T01:14:56Z",
"published": "2022-05-14T01:14:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-7715"
},
{
"type": "WEB",
"url": "https://github.com/bl4ckic3/GHS-Bugs"
},
{
"type": "WEB",
"url": "https://www.ghs.com/products/rtos/integrity.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-5X5X-C9Q8-X83F
Vulnerability from github – Published: 2022-05-01 18:18 – Updated: 2022-05-01 18:18The multiplayer engine in Wesnoth 1.2.x before 1.2.7 and 1.3.x before 1.3.9 allows remote servers to cause a denial of service (crash) via a long message with multibyte characters that can produce an invalid UTF-8 string after it is truncated, which triggers an uncaught exception, involving the truncate_message function in server/server.cpp. NOTE: this issue affects both clients and servers.
{
"affected": [],
"aliases": [
"CVE-2007-3917"
],
"database_specific": {
"cwe_ids": [
"CWE-134"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2007-10-11T10:17:00Z",
"severity": "HIGH"
},
"details": "The multiplayer engine in Wesnoth 1.2.x before 1.2.7 and 1.3.x before 1.3.9 allows remote servers to cause a denial of service (crash) via a long message with multibyte characters that can produce an invalid UTF-8 string after it is truncated, which triggers an uncaught exception, involving the truncate_message function in server/server.cpp. NOTE: this issue affects both clients and servers.",
"id": "GHSA-5x5x-c9q8-x83f",
"modified": "2022-05-01T18:18:34Z",
"published": "2022-05-01T18:18:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2007-3917"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=324841"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/37047"
},
{
"type": "WEB",
"url": "https://www.redhat.com/archives/fedora-package-announce/2007-October/msg00194.html"
},
{
"type": "WEB",
"url": "http://osvdb.org/41711"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/27137"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/27218"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/27241"
},
{
"type": "WEB",
"url": "http://svn.gna.org/viewcvs/wesnoth/tags/1.2.7/changelog?rev=20982\u0026view=download"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2007/dsa-1386"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/25995"
},
{
"type": "WEB",
"url": "http://www.vupen.com/english/advisories/2007/3449"
},
{
"type": "WEB",
"url": "http://www.wesnoth.org/forum/viewtopic.php?p=256618"
},
{
"type": "WEB",
"url": "http://www.wesnoth.org/forum/viewtopic.php?t=18188"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-62J9-25GG-9W4W
Vulnerability from github – Published: 2022-05-01 23:34 – Updated: 2022-05-01 23:34Format string vulnerability in the logging function in the IM Server (aka IMserve or IMserver) in Ipswitch Instant Messaging (IM) 2.0.8.1 and earlier allows remote authenticated users to cause a denial of service (daemon crash) and possibly have unspecified other impact via format string specifiers in an IP address field.
{
"affected": [],
"aliases": [
"CVE-2008-0945"
],
"database_specific": {
"cwe_ids": [
"CWE-134"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2008-02-25T21:44:00Z",
"severity": "LOW"
},
"details": "Format string vulnerability in the logging function in the IM Server (aka IMserve or IMserver) in Ipswitch Instant Messaging (IM) 2.0.8.1 and earlier allows remote authenticated users to cause a denial of service (daemon crash) and possibly have unspecified other impact via format string specifiers in an IP address field.",
"id": "GHSA-62j9-25gg-9w4w",
"modified": "2022-05-01T23:34:59Z",
"published": "2022-05-01T23:34:59Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2008-0945"
},
{
"type": "WEB",
"url": "http://aluigi.altervista.org/adv/ipsimene-adv.txt"
},
{
"type": "WEB",
"url": "http://aluigi.org/poc/ipsimene.zip"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/28824"
},
{
"type": "WEB",
"url": "http://securityreason.com/securityalert/3697"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/archive/1/487748/100/200/threaded"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/27677"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-62MF-G244-32XG
Vulnerability from github – Published: 2022-10-25 19:00 – Updated: 2022-10-27 19:00Four format string injection vulnerabilities exist in the web interface /action/wirelessConnect functionality of Abode Systems, Inc. iota All-In-One Security Kit 6.9Z and 6.9X. A specially-crafted HTTP request can lead to memory corruption, information disclosure and denial of service. An attacker can make an authenticated HTTP request to trigger these vulnerabilities.This vulnerability arises from format string injection via the ssid_hex HTTP parameter, as used within the /action/wirelessConnect handler.
{
"affected": [],
"aliases": [
"CVE-2022-35884"
],
"database_specific": {
"cwe_ids": [
"CWE-134"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-10-25T17:15:00Z",
"severity": "HIGH"
},
"details": "Four format string injection vulnerabilities exist in the web interface /action/wirelessConnect functionality of Abode Systems, Inc. iota All-In-One Security Kit 6.9Z and 6.9X. A specially-crafted HTTP request can lead to memory corruption, information disclosure and denial of service. An attacker can make an authenticated HTTP request to trigger these vulnerabilities.This vulnerability arises from format string injection via the `ssid_hex` HTTP parameter, as used within the `/action/wirelessConnect` handler.",
"id": "GHSA-62mf-g244-32xg",
"modified": "2022-10-27T19:00:35Z",
"published": "2022-10-25T19:00:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-35884"
},
{
"type": "WEB",
"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2022-1585"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-63G4-9329-Q5X4
Vulnerability from github – Published: 2022-05-17 04:09 – Updated: 2022-05-17 04:09Format string vulnerability in the token processing system (pki-tps) in Red Hat Certificate System (RHCS) 8.1 and possibly Dogtag Certificate System 9 and 10 allows remote authenticated users to cause a denial of service (crash) and possibly execute arbitrary code via format string specifiers in unspecified vectors, related to viewing certificates.
{
"affected": [],
"aliases": [
"CVE-2013-1886"
],
"database_specific": {
"cwe_ids": [
"CWE-134"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2014-01-24T16:55:00Z",
"severity": "HIGH"
},
"details": "Format string vulnerability in the token processing system (pki-tps) in Red Hat Certificate System (RHCS) 8.1 and possibly Dogtag Certificate System 9 and 10 allows remote authenticated users to cause a denial of service (crash) and possibly execute arbitrary code via format string specifiers in unspecified vectors, related to viewing certificates.",
"id": "GHSA-63g4-9329-q5x4",
"modified": "2022-05-17T04:09:21Z",
"published": "2022-05-17T04:09:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-1886"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=924870"
},
{
"type": "WEB",
"url": "http://osvdb.org/93613"
},
{
"type": "WEB",
"url": "http://rhn.redhat.com/errata/RHSA-2013-0856.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/60085"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1029685"
}
],
"schema_version": "1.4.0",
"severity": []
}
Mitigation
Choose a language that is not subject to this flaw.
Mitigation
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
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.