accel-ppp before 1.15.0 contains a heap buffer overflow vulnerability in the tcp, syslog and pgsql log targets that allows unauthenticated remote peers to overflow fixed heap buffers by producing log lines exceeding LOG_MAX_SIZE. Attackers within client-ip-range can send an L2TP Start-Control-Connection-Request with many string AVPs when verbose logging is enabled to corrupt heap memory and crash the daemon.

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Workaround

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History

Thu, 05 Nov 2026 18:30:00 +0000

Type Values Removed Values Added
Description accel-ppp before 1.15.0 contains a heap buffer overflow vulnerability in the tcp, syslog and pgsql log targets that allows unauthenticated remote peers to overflow fixed heap buffers by producing log lines exceeding LOG_MAX_SIZE. Attackers within client-ip-range can send an L2TP Start-Control-Connection-Request with many string AVPs when verbose logging is enabled to corrupt heap memory and crash the daemon.
Title accel-ppp before 1.15.0 Heap-based Buffer Overflow via oversized log lines in log_tcp/log_syslog/log_pgsql
First Time appeared Accel-ppp
Accel-ppp accel-ppp
Weaknesses CWE-122
CPEs cpe:2.3:a:accel-ppp:accel-ppp:*:*:*:*:*:*:*:*
Vendors & Products Accel-ppp
Accel-ppp accel-ppp
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H'}

cvssV4_0

{'score': 8.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-05T18:16:40.464Z

Reserved: 2026-11-05T17:58:51.544Z

Link: CVE-2026-123205

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-05T19:17:19.867

Modified: 2026-11-05T19:17:19.867

Link: CVE-2026-123205

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses