CVE-2023-45232: Infinite loop in EDK II Network Package
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.
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?Advisory lineage
Upstream 0 · Downstream 11 · Related 7Timeline
- 16-01-2024PublishedVulnerability first disclosed.
- 04-11-2025Last 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- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
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- www.openwall.com/lists/oss-security/2024/01/16/2Mailing List