CVE-2023-45235
A public proof of concept exists; no exploitation attested.
- Published2024-01-16
- WeaknessCWE-119
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
EDK2's Network Package is susceptible to a buffer overflow vulnerability when handling Server ID option from a DHCPv6 proxy Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.
Timeline
dates in UTC- 2024-01-1616:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-45235?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-45235?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 202311.x | ≤ 202311 | no fix published | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Packages
- edk2-ovmfAlmaLinux:8all versions · fixed in 20220126gitbb1bba3d77-13.el8_10and 1 other package
- edk2-toolsAlmaLinux:9all versions · fixed in 20231122-6.el9and 3 other packages
Vendor advisories
ABB B&R PCs
ABB APC4100 <1.09 · ABB APC910 <=1.25 · ABB C80 <1.14 · +7 more
Fix
- Vendor fix CISA ICSA-26-141-02 · 10 productsThe problems are corrected in the following product versions: - APC4100 1.09 - APC910 No patch will be released (Please refer to the mitigation measures specified in this advisory). - C80 1.14 - MPC3100 1.24 - PPC1200 1.14 - PPC900 2.16 - APC2200 1.35 - PPC2200 1.35 - APC3100 1.45 - PPC3…
- Mitigation from the vendor CISA ICSA-26-141-02 · 10 productsDeactivate the vulnerable component - The vulnerabilities exist in the Preboot eXecution Environment (PXE) of the UEFI firmware. If this functionality is not needed, it is recommended to disable it in the UEFI settings, thus making the vulnerabilities not exploitable. Limit accessibility - If P…
Advisories and patches
- github.comVendor Advisory
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published
- 2024-01-16
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2023-45235?
Is CVE-2023-45235 actively exploited?
What is the CVSS score for CVE-2023-45235?
Running edk2-tools? Hear about its next vulnerability
Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».
No credit card required · No monthly cap on website lookups · 250 API requests/month
Go further
- Following what attackers exploit right now? The CISA KEV additions of the month, with their patch deadlines.
- Running this software? Vulnerability monitoring alerts you to new vulnerabilities in your products.
Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.