MEDIUM
CVE-2023-26545
CWE-415Published: February 25, 2023· Updated: Jun 17, 2026
4.7
CVSS v3.1
Official Description
In the Linux kernel before 6.1.13, there is a double free in net/mpls/af_mpls.c upon an allocation failure (for registering the sysctl table under a new location) during the renaming of a device.
Technical Analysis
CVE-2023-26545 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 4.7.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityHigh
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (12)
→
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fda6c89fe3d9aca073495a664e1d5aea28cd4377Issue Tracking · Mailing List
→
https://lists.debian.org/debian-lts-announce/2023/05/msg00005.htmlMailing List · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2023/05/msg00006.htmlMailing List · Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20230316-0009/Third Party Advisory
→
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fda6c89fe3d9aca073495a664e1d5aea28cd4377Issue Tracking · Mailing List
→
https://lists.debian.org/debian-lts-announce/2023/05/msg00005.htmlMailing List · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2023/05/msg00006.htmlMailing List · Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20230316-0009/Third Party Advisory
Quick Facts
CVE IDCVE-2023-26545
CVSS Score4.7 / 10
SeverityMEDIUM
WeaknessCWE-415
CISA KEVNo
Affected3 vendor(s)
PublishedFeb 25, 2023
Related CVEs (CWE-415)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-26545 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.