CVE-2023-45235

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.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpacttotalSuccessful exploitation gives total 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

1.22% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 66.7% of scored records. A rank, not a probability.

NVD base score

8.8 (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:H/A:H

NVD analysis status

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

Red Hat severity

Important. 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 16:11Z2 YR AGO

Last updated

2025-11-04 18:17Z10 MO AGO

Reserved

2023-10-05

Assigning CNA

TianoCore

Record state

PUBLISHED

Severity

High (CVSS 8.3)

CNA CVSS vector

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

Weaknesses

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass

Data version

5.2

Document digest

3f3c4897f6193deef4cc8e72aef60efe08139f6e68563f54d62da74f0c67dde1

• github.comhttps://github.com/tianocore/edk2/security/advisories/GHSA-hc6x-cw6p-gj7h
• 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