7.5

CVE-2023-45232: Infinite loop in EDK II Network Package

Modified
AliasesUBUNTU-CVE-2023-45232DEBIAN-CVE-2023-45232
Published 16-01-2024Last modified 04-11-2025

Vulnerability summary

CVE-2023-45232 is a high (CVSS 7.5) Loop with Unreachable Exit Condition vulnerability in tianocore edk2. EPSS estimates a 2.08% chance of exploitation in the next 30 days, higher than 81.5% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 2% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
2.08%
0%100%
Low · -0.02 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 11 · Related 7

Timeline

  1. 16-01-2024
    PublishedVulnerability first disclosed.
  2. 04-11-2025
    Last modifiedVulnerability information updated.

Description

EDK2's Network Package is susceptible to an infinite loop vulnerability when parsing unknown options in the Destination Options header of IPv6. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Availability.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

2.08%

Chance of exploitation in the next 30 days

Percentile

82%

Versus all other CVEs

30-day change

Decrease -0.02 pp

From 2.10% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Debian1 product
  • edk2< 2022.11-6+deb12u1 | < 2023.11-6
Tianocore1 product
  • edk2edk2-stable202308 | ≤ 202311
Ubuntu1 product
  • edk2All versions (No fix recorded) | < 0~20191122.bd85bf54-2ubuntu3.5 | < 2022.02-3ubuntu0.22.04.2

3 vendors · 3 products

References

14 links
Show all 14 references