An issue was discovered in lldpd before 1.0.17.
Priority MEDIUM 51CWE-125Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 1 fixed, 1 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01147 66th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 1 fixed, 1 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:lldpd_project:lldpd:*:*:*:*:*:*:*:* | before 1.0.17 | Vulnerable | Lldpd Project |
- cpe:2.3:a:lldpd_project:lldpd:*:*:*:*:*:*:*:* Versions before 1.0.17 Vulnerable ·Lldpd Project
Remediation
Red Hat 1 advisory
- RHSA-2024:9158 Released 2024-11-12 · Red Hat rating Moderatelldpd security update
- Red Hat Enterprise Linux AppStream (v. 9) lldpd-1.0.18-4.el9, lldpd-devel-1.0.18-4.el9
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 8 | Affected | No fix yet |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2024:9158 |
Timeline
- 2026-10-02 Threatist record created from CVE-2023-41910
- 2026-10-03 Alias added: GHSA-5vp9-2h7g-hxq8
References
More Lldpd Project Lldpd vulnerabilities
- TI-2015-06661 Buffer overflow in the lldp_decode function in daemon/protocols/lldp.c in lldpd before… CVSS 3.1CRITICAL 9.8
- TI-2020-16898 Uncontrolled resource consumption in lldp/openvswitch CVSS 3.1HIGH 7.5
- TI-2021-19480 In lldpd before 1.0.13, when decoding SONMP packets in the sonmp_decode function, it's… CVSS 3.1HIGH 7.5
- TI-2015-06662 lldpd before 0.8.0 allows remote attackers to cause a denial of service (assertion… CVSS 3.1HIGH 7.5
- TI-2026-34144 lldpd: Heap OOB Read in VLAN Decapsulation memmove CVSS 3.1MEDIUM 6.5
Sources
- CVE-2023-41910 · CVE Program
- CVE-2023-41910 · NVD
- FIRST EPSS
- GHSA-5vp9-2h7g-hxq8 · GitHub Advisory Database · CC BY 4.0
- CVE-2023-41910 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences