CVE-2026-24184

Code execution via LLDP daemon overflow

Published Aug 18, 2026 · Updated Aug 18, 2026

Buffer overflow in the LLDP daemon in NVIDIA Cumulus Linux allows adjacent attackers to execute code via crafted LLDP frames before 5.16, 5.11.5, and 5.9.5. NVIDIA identifies the Link Layer Discovery Protocol daemon as the affected component, but public records do not disclose the specific parser routine or copy operation that overruns a buffer when it processes a crafted LLDP frame. The gate is adjacent-network reachability to LLDP with no authentication; the published consequence is potential code execution from malformed neighbor-discovery traffic.

CVSS severity7.5
High
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in the LLDP daemon in NVIDIA Cumulus Linux allows adjacent attackers to execute code via crafted LLDP frames before 5.16, 5.11.5, and 5.9.5. NVIDIA identifies the Link Layer Discovery Protocol daemon as the affected component, but public records do not disclose the specific parser routine or copy operation that overruns a buffer when it processes a crafted LLDP frame. The gate is adjacent-network reachability to LLDP with no authentication; the published consequence is potential code execution from malformed neighbor-discovery traffic.

The record

CVE
CVE-2026-24184
Published
Aug 18, 2026
Updated
Aug 18, 2026
Vendor
DPDK Project
Product
Cumulus Linux
Classifications
CWE-120, T1210
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.0 to 5.11.5
  2. Affected versionversion=0.0 to 5.16
  3. Affected versionversion=0.0 to 5.9.5

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

DPDK Project · Cumulus Linuxversion=0.0 to 5.11.5; version=0.0 to 5.16; version=0.0 to 5.9.5

Published CVSS scores

7.5NVIDIACVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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