What’s Vulnerable › Vulnerabilities

CVE-2026-20898

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-11 · updated 2026-08-31
• Weakness: CWE-284

Description

Improper access control in the firmware for some in Alias Checking Trusted Module for some Intel(R) Xeon(R) processors may allow an escalation of privilege. Startup code and SMM adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (none) impacts.

Affected products

• Intel Xeon 6315P Firmware: all versions
• Intel Xeon 6325P Firmware: all versions
• Intel Xeon 6333P Firmware: all versions
• Intel Xeon 6337P Firmware: all versions
• Intel Xeon 6349P Firmware: all versions
• Intel Xeon 6353P Firmware: all versions
• Intel Xeon 6357P Firmware: all versions
• Intel Xeon 6369P Firmware: all versions
• Intel Xeon 6377P Firmware: all versions
• Intel Xeon 6503P-B Firmware: all versions
• Intel Xeon 6503P Firmware: all versions
• Intel Xeon 6505P Firmware: all versions
• Intel Xeon 6507P Firmware: all versions
• Intel Xeon 6511P Firmware: all versions
• Intel Xeon 6513P-B Firmware: all versions
• Intel Xeon 6515P Firmware: all versions
• Intel Xeon 6516P-B Firmware: all versions
• Intel Xeon 6517P Firmware: all versions
• Intel Xeon 6518P-B Firmware: all versions
• Intel Xeon 6520P Firmware: all versions
• Intel Xeon 6521P Firmware: all versions
• Intel Xeon 6523P-B Firmware: all versions
• Intel Xeon 6527P Firmware: all versions
• Intel Xeon 6530P Firmware: all versions
• Intel Xeon 6532P-B Firmware: all versions
• Intel Xeon 6533P-B Firmware: all versions
• Intel Xeon 6543P-B Firmware: all versions
• Intel Xeon 6544P-B Firmware: all versions
• Intel Xeon 6546P-B Firmware: all versions
• Intel Xeon 6548P-B Firmware: all versions

References

• https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01439.html

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