CVE-2023-45231

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.86% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 55.8% of scored records. A rank, not a probability.

NVD base score

6.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2024-01-16 16:09Z2 YR AGO

Last updated

2025-11-04 18:17Z10 MO AGO

Reserved

2023-10-05

Assigning CNA

TianoCore

Record state

PUBLISHED

Severity

Medium (CVSS 6.5)

CNA CVSS vector

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

Weaknesses

• CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

53c58b57bb58b2c8bd96f783d316b30c5c27821f09b953df41d664ce40642407

• github.comhttps://github.com/tianocore/edk2/security/advisories/GHSA-hc6x-cw6p-gj7hvendor-advisory
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2024/01/16/2
• packetstormsecurity.comhttp://packetstormsecurity.com/files/176574/PixieFail-Proof-Of-Concepts.html
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20240307-0011/
• lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SJ42V7O7F4OU6R7QSQQECLB6LDHKZIMQ/
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/06/msg00007.html
• www.kb.cert.orghttps://www.kb.cert.org/vuls/id/132380