{
  "id": 16802507,
  "title": "Code-Execution Flaw In UEFI Firmware Threatens Most Servers On Planet Earth",
  "url": "https://urgent.news/2026/10/27/code-execution-flaw-in-uefi-firmware-threatens-most-servers-on-planet-16802507",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-10-27T21:30:00.000Z",
  "source": {
    "name": "Slashdot",
    "slug": "slashdot",
    "url": "https://it.slashdot.org/story/26/10/27/2121232/code-execution-flaw-in-uefi-firmware-threatens-most-servers-on-planet-earth"
  },
  "original_language": "en",
  "account": "The security community faces the challenge of addressing a critical code-execution flaw discovered in UEFI firmware used by many servers and data centers globally. The vulnerability, classified as a high severity 9.5 out of 10, exists in the TianoCore EDK II, an open-source codebase relied upon by hardware manufacturers and cloud providers to develop UEFI firmware responsible for the initial boot-up process. TianoCore EDK II's widespread adoption is evidenced by its use by prominent UEFI suppliers, including AMI, Insyde, and Phoenix, as well as Microsoft's Microsoft Project Mu. The vulnerability, identified as CVE-2026-97631, is a memory corruption flaw within an ICMP component that, when exploited, allows attackers to execute malicious code before the operating system or firmware can activate defenses like Secure Boot, which establishes a secure chain of trust for all code, including the Trusted Platform Module (TPM), during boot-up. Although the final payload delivered by CVE-2026-97631 is one-time, it provides attackers with an opportunity to install other persistent malicious payloads early in the boot process. The vulnerability's discovery and subsequent disclosure took place in a coordinated manner, with the discoverers, Alex Matrosov of Anthropic and Dan Holmes of Google, keeping it under wraps until January. AMI, a prominent motherboard manufacturer, promptly issued a pull request detailing the vulnerability and providing a code fix. However, the publication of the patch code has raised concerns, as it will enable skilled hackers to quickly develop working exploits. The urgency of the situation is further heightened by the complexity and time-consuming nature of patching UEFI code vulnerabilities in millions of devices produced and utilized by numerous hardware makers and cloud providers.",
  "summary": "Ars Technica's Dan Goodin reports: Defenders across the world face the burden of responding to yet another botched code-execution vulnerability, this time in boot-time firmware used by most of the world's server vendors and data centers. The vulnerability, with a severity rating of 9.5 out of 10, resides in the TianoCore EDK II, an open source codebase that hardware makers and cloud providers use…",
  "key_points": [
    "Critical code-execution flaw found in UEFI firmware",
    "Vulnerability in TianoCore EDK II affects global servers",
    "Exploit allows malicious code execution before Secure Boot"
  ],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 2,
    "also_reported_by": [
      {
        "outlet": "Ars Technica",
        "title": "Code-execution flaw in UEFI firmware threatens most servers on planet Earth",
        "url": "https://urgent.news/2026/10/27/code-execution-flaw-in-uefi-firmware-threatens-most-servers-on-planet",
        "published": "2026-10-27T20:25:55.000Z"
      }
    ]
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}