Is CVE-2024-31157 in the CISA KEV catalog?

No. CVE-2024-31157 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-31157?

CVE-2024-31157 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2024-31157?

CVE-2024-31157 has an EPSS score of 0.22% (13th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-31157?

Upgrade intel-microcode on debian 11 to 3.20250211.1~deb11u1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2024-31157

MEDIUM

5.3

CVSS v3

NVD

Description

Improper initialization in UEFI firmware OutOfBandXML module in some Intel(R) Processors may allow a privileged user to potentially enable information disclosure via local access.

CWE-665

How to fix

Remediation Available

intel-microcodeDebian

Fixed in:3.20250211.1~deb11u1CVE-2024-31157

Fixed in:3.20250211.1~deb12u1CVE-2024-31157

Fixed in:3.20250211.1CVE-2024-31157

microcode_ctlRocky

Fixed in:4:20250211-1.el8_10RHEA-2025:3114

Fixed in:4:20250211-1.el9_6RHSA-2025:7043

microcode_ctlRed Hat / RHEL

Fixed in:4:20250211-1.el8_10RHEA-2025:3114

Fixed in:4:20250211-1.el9_6RHSA-2025:7043

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityHigh

Privileges RequiredHigh

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N

Exploit Intelligence

0.22%probability of exploitation in 30 days

13thpercentile

Low risk: more likely to be exploited than 13% of all known CVEs.

References

Other references2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-03.