CVE-2024-36434: Memory Buffer Overflow
Source CVE Database V5
Not known to be exploited · CVSS 7.5 High · fixed in 4.4 : patch affected systems soon.
Data as of 26 Oct 2026, 10:12 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 4.4
CVSS:3.1/AC:H/AV:L/A:H/C:H/I:H/PR:H/S:C/UI:NExploitation evidence
Disclosed: evidence found.
CVE published 15 Jul 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
AI-suggested
Organizations should monitor Supermicro communications for official BIOS firmware updates addressing CVE-2024-36434 and apply these updates promptly once available. If you cannot patch yet, restrict access to systems with affected motherboards to trusted administrators only, enforce strict privilege separation, and monitor for suspicious local activity indicative of privilege escalation attempts. Employ hardware-based security features such as Intel TXT or AMD SEV to limit firmware attack surfaces where possible. Conduct regular firmware integrity checks and use secure boot mechanisms to detect unauthorized firmware modifications. Implement network segmentation and strong access controls to reduce the risk of attackers gaining local access. Additionally, consider deploying endpoint detection and response (EDR) solutions capable of detecting anomalous behavior at the firmware or kernel level. Maintain up-to-date inventories of hardware to identify affected systems and prioritize remediation efforts accordingly.
Description
An SMM callout vulnerability was discovered in Supermicro X11DPH-T, X11DPH-Tq, and X11DPH-i motherboards with BIOS firmware before 4.4.