CVE-2023-41910

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2023-09-05. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 0

A fix is available — apply it.

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.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
59(Track)
EG Risk 59/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
58%
KEV
Not listed

Published

September 5, 2023

Last Modified

June 17, 2026

Advisory Details (4)

Auto-updated Aug 10, 2026
Patch available. Sources: github_commit, github_release.
generic Patch Available

[SECURITY] [DLA 3578-1] lldpd security update

https://lists.debian.org/debian-lts-announce/2023/09/msg00025.html
github_release Patch Available

1.0.17

Patch available: lldpd/lldpd 1.0.17

https://github.com/lldpd/lldpd/releases/tag/1.0.17
github_commit Patch Available

commit a9aeabdf879c (lldpd/lldpd)

Patch available: lldpd/lldpd 1.0.17 (contains commit a9aeabdf879c)

https://github.com/lldpd/lldpd/commit/a9aeabdf879c25c584852a0bb5523837632f099b
generic

[SECURITY] [DSA 5505-1] lldpd security update

https://www.debian.org/security/2023/dsa-5505

Vendor Advisories for CVE-2023-41910(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatlldpd-0:1.0.18-4.el92024-11-12redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(5 across 5 ecosystems)
Debian:10(1)
PackageVulnerable rangeFixed inDependents
lldpd1.0.3-1, 1.0.3-1+deb10u11.0.3-1+deb10u2—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
lldpd1.0.11-1, 1.0.11-1+deb11u11.0.11-1+deb11u2—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
lldpd1.0.16-11.0.16-1+deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
lldpd—1.0.17-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
lldpd—1.0.17-1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 7× in last 7d / 46× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 135 total refreshes for this CVE.

  1. 2026-08-09 13:44 UTCEPSS rescore
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  1. 2026-07-23 14:16 UTCEPSS rescore
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  75. 2026-06-09 21:47 UTCOSV refresh

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2023-41910?
CVE-2023-41910 is a critical vulnerability published on September 5, 2023. An issue was discovered in lldpd before 1.0.17. By crafting a CDP PDU packet with specific CDPTLVADDRESSES 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.
When was CVE-2023-41910 disclosed?
CVE-2023-41910 was first published in the National Vulnerability Database on September 5, 2023, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-41910 actively exploited?
CVE-2023-41910 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 41.9% of all scored CVEs.
What is the CVSS score of CVE-2023-41910?
CVE-2023-41910 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2023-41910?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-41910, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-41910

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