CWE-121
AllowedStack-based Buffer Overflow
Abstraction: Variant · Status: Draft
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
5205 vulnerabilities reference this CWE, most recent first.
GHSA-XXC7-RQ23-X492
Vulnerability from github – Published: 2026-02-05 18:30 – Updated: 2026-02-05 18:30UltraVNC Launcher 1.2.4.0 contains a denial of service vulnerability in the Repeater Host configuration field that allows attackers to crash the application. Attackers can paste an overly long string of 300 characters into the Repeater Host property to trigger an application crash.
{
"affected": [],
"aliases": [
"CVE-2020-37133"
],
"database_specific": {
"cwe_ids": [
"CWE-121",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-05T17:16:08Z",
"severity": "MODERATE"
},
"details": "UltraVNC Launcher 1.2.4.0 contains a denial of service vulnerability in the Repeater Host configuration field that allows attackers to crash the application. Attackers can paste an overly long string of 300 characters into the Repeater Host property to trigger an application crash.",
"id": "GHSA-xxc7-rq23-x492",
"modified": "2026-02-05T18:30:31Z",
"published": "2026-02-05T18:30:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-37133"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/48288"
},
{
"type": "WEB",
"url": "https://www.uvnc.com"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/ultravnc-launcher-repeaterhost-denial-of-service"
}
],
"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:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-XXCC-4HJX-8Q5V
Vulnerability from github – Published: 2022-05-24 17:41 – Updated: 2022-05-24 17:41Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and RV325 Routers could allow an authenticated, remote attacker to execute arbitrary code or cause an affected device to restart unexpectedly. These vulnerabilities are due to improper validation of user-supplied input in the web-based management interface. An attacker could exploit these vulnerabilities by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system or cause the device to reload, resulting in a denial of service (DoS) condition. To exploit these vulnerabilities, an attacker would need to have valid administrator credentials on the affected device.
{
"affected": [],
"aliases": [
"CVE-2021-1335"
],
"database_specific": {
"cwe_ids": [
"CWE-121",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-02-04T17:15:00Z",
"severity": "HIGH"
},
"details": "Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and RV325 Routers could allow an authenticated, remote attacker to execute arbitrary code or cause an affected device to restart unexpectedly. These vulnerabilities are due to improper validation of user-supplied input in the web-based management interface. An attacker could exploit these vulnerabilities by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system or cause the device to reload, resulting in a denial of service (DoS) condition. To exploit these vulnerabilities, an attacker would need to have valid administrator credentials on the affected device.",
"id": "GHSA-xxcc-4hjx-8q5v",
"modified": "2022-05-24T17:41:03Z",
"published": "2022-05-24T17:41:03Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-1335"
},
{
"type": "WEB",
"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-overflow-ghZP68yj"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-XXF2-XRV7-R2GJ
Vulnerability from github – Published: 2024-05-14 18:31 – Updated: 2024-07-09 12:30A vulnerability has been identified in Simcenter Nastran 2306 (All versions), Simcenter Nastran 2312 (All versions), Simcenter Nastran 2406 (All versions < V2406.90). The affected applications contain a stack overflow vulnerability while parsing specially strings as argument for one of the application binaries. This could allow an attacker to execute code in the context of the current process.
{
"affected": [],
"aliases": [
"CVE-2024-33577"
],
"database_specific": {
"cwe_ids": [
"CWE-121"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-14T16:17:20Z",
"severity": "HIGH"
},
"details": "A vulnerability has been identified in Simcenter Nastran 2306 (All versions), Simcenter Nastran 2312 (All versions), Simcenter Nastran 2406 (All versions \u003c V2406.90). The affected applications contain a stack overflow vulnerability while parsing specially strings as argument for one of the application binaries. This could allow an attacker to execute code in the context of the current process.",
"id": "GHSA-xxf2-xrv7-r2gj",
"modified": "2024-07-09T12:30:55Z",
"published": "2024-05-14T18:31:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-33577"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-064222.html"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-258494.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-XXQF-V7W5-P22H
Vulnerability from github – Published: 2025-12-02 15:30 – Updated: 2025-12-03 21:31Stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. In the 'ShowMeterPasswords()' function, there is an unlimited user input that is copied to a fixed-size buffer via 'sprintf()'. The 'GetParameter(meter)' function retrieves the user input, which is directly incorporated into a buffer without size validation. An attacker can provide an excessively large input for the 'meter' parameter.
{
"affected": [],
"aliases": [
"CVE-2025-11785"
],
"database_specific": {
"cwe_ids": [
"CWE-121"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-02T13:15:50Z",
"severity": "HIGH"
},
"details": "Stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. In the \u0027ShowMeterPasswords()\u0027 function, there is an unlimited user input that is copied to a fixed-size buffer via \u0027sprintf()\u0027. The \u0027GetParameter(meter)\u0027 function retrieves the user input, which is directly incorporated into a buffer without size validation. An attacker can provide an excessively large input for the \u0027meter\u0027 parameter.",
"id": "GHSA-xxqf-v7w5-p22h",
"modified": "2025-12-03T21:31:04Z",
"published": "2025-12-02T15:30:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-11785"
},
{
"type": "WEB",
"url": "https://www.incibe.es/en/incibe-cert/notices/aviso-sci/multiple-vulnerabilities-circutor-products-0"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:H/SC:H/SI:L/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-XXVW-6QQH-QRJJ
Vulnerability from github – Published: 2025-03-20 21:31 – Updated: 2025-03-21 18:31Tenda W18E v2.0 v16.01.0.11 was discovered to contain a stack overflow in the wifiSSID parameter at /goform/setModules. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted POST request.
{
"affected": [],
"aliases": [
"CVE-2025-29217"
],
"database_specific": {
"cwe_ids": [
"CWE-121"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-20T19:15:37Z",
"severity": "MODERATE"
},
"details": "Tenda W18E v2.0 v16.01.0.11 was discovered to contain a stack overflow in the wifiSSID parameter at /goform/setModules. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted POST request.",
"id": "GHSA-xxvw-6qqh-qrjj",
"modified": "2025-03-21T18:31:35Z",
"published": "2025-03-20T21:31:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-29217"
},
{
"type": "WEB",
"url": "https://gist.github.com/isstabber/d170f68bd85ed97e66ff316e57634b99"
},
{
"type": "WEB",
"url": "https://www.tenda.com.cn"
},
{
"type": "WEB",
"url": "http://w18e.com"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation MIT-10
Strategy: Environment Hardening
- 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
Use an abstraction library to abstract away risky APIs. Not a complete solution.
Mitigation
Implement and perform bounds checking on input.
Mitigation
Do not use dangerous functions such as gets. Use safer, equivalent functions which check for boundary errors.
Mitigation MIT-11
Strategy: Environment Hardening
- 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].
No CAPEC attack patterns related to this CWE.