What is CVE-2023-41910?

CVE-2023-41910 is a critical-severity vulnerability in Lldpd Project, classified under Out-of-bounds Read. CVSS score: 9.8/10. Published 2023-09-05.

How severe is CVE-2023-41910?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Out-of-bounds Read in Lldpd Project

CVE-2023-41910

An issue was discovered in lldpd before 1.0.17. By crafting a CDP PDU packet with specific CDP_TLV_ADDRESSES TLVs, a malicious actor can remotely force the lldpd daemon to perform an out-of-bounds read on heap memory. This occurs in cdp_decode in daemon/protocols/cdp.c.

Vulnerability class: Buffer Overflow

Published 2023-09-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.011 (65.5th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 65.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.011 · change: +0.002

Affected products

Lldpd Project

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

github.com/lldpd/lldpd/releases/tag/1.0.17 (Release Notes)
github.com/lldpd/lldpd/commit/a9aeabdf879c25c584852a0bb5523837632f099b (Patch)
lists.debian.org/debian-lts-announce/2023/09/msg00025.html (mailing-list)
www.debian.org/security/2023/dsa-5505 (vendor-advisory)

Frequently asked questions

What is CVE-2023-41910?: CVE-2023-41910 is a critical-severity vulnerability in Lldpd Project, classified under Out-of-bounds Read. CVSS score: 9.8/10. Published 2023-09-05.
How severe is CVE-2023-41910?: Critical severity. CVSS v3 base score is 9.8 out of 10.