CWE-123
AllowedWrite-what-where Condition
Abstraction: Base · Status: Draft
Any condition where the attacker has the ability to write an arbitrary value to an arbitrary location, often as the result of a buffer overflow.
82 vulnerabilities reference this CWE, most recent first.
GHSA-X838-QR7R-99R6
Vulnerability from github – Published: 2022-05-17 01:58 – Updated: 2022-05-17 01:58Foxit Reader before 8.3.1 and PhantomPDF before 8.3.1 have an Arbitrary Write vulnerability, which allows remote attackers to execute arbitrary code via a crafted document.
{
"affected": [],
"aliases": [
"CVE-2017-10994"
],
"database_specific": {
"cwe_ids": [
"CWE-123"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-07-07T16:29:00Z",
"severity": "HIGH"
},
"details": "Foxit Reader before 8.3.1 and PhantomPDF before 8.3.1 have an Arbitrary Write vulnerability, which allows remote attackers to execute arbitrary code via a crafted document.",
"id": "GHSA-x838-qr7r-99r6",
"modified": "2022-05-17T01:58:13Z",
"published": "2022-05-17T01:58:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-10994"
},
{
"type": "WEB",
"url": "https://www.foxitsoftware.com/support/security-bulletins.php"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/99499"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1039113"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-XJJJ-2993-4G39
Vulnerability from github – Published: 2026-04-07 21:32 – Updated: 2026-04-07 21:32An improper access control vulnerability exists in Semtech LoRa LR11xxx transceivers running early versions of firmware where the memory write command accessible via the physical SPI interface fails to enforce write protection on the program call stack. An attacker with physical access to the SPI interface can overwrite stack memory to hijack program control flow and achieve limited arbitrary code execution. However, the impact is limited to the active attack session: the device's secure boot mechanism prevents persistent firmware modification, the crypto engine isolates cryptographic keys from direct firmware access, and all modifications are lost upon device reboot or loss of physical access.
{
"affected": [],
"aliases": [
"CVE-2025-14857"
],
"database_specific": {
"cwe_ids": [
"CWE-123"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-07T20:16:21Z",
"severity": "MODERATE"
},
"details": "An improper access control vulnerability exists in Semtech LoRa LR11xxx transceivers running early versions of firmware where the memory write command accessible via the physical SPI interface fails to enforce write protection on the program call stack. An attacker with physical access to the SPI interface can overwrite stack memory to hijack program control flow and achieve limited arbitrary code execution. However, the impact is limited to the active attack session: the device\u0027s secure boot mechanism prevents persistent firmware modification, the crypto engine isolates cryptographic keys from direct firmware access, and all modifications are lost upon device reboot or loss of physical access.",
"id": "GHSA-xjjj-2993-4g39",
"modified": "2026-04-07T21:32:39Z",
"published": "2026-04-07T21:32:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-14857"
},
{
"type": "WEB",
"url": "https://www.semtech.com/company/security/security-bulletins/sem-psa-2026-001"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/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:N/R:A/V:D/RE:M/U:X",
"type": "CVSS_V4"
}
]
}
Mitigation
Strategy: Language Selection
Use a language that provides appropriate memory abstractions.
Mitigation
Use OS-level preventative functionality integrated after the fact. Not a complete solution.
No CAPEC attack patterns related to this CWE.