Description
Solanum before commit 2ea1382 contains a buffer overflow vulnerability in ms_kill() that allows malicious linked servers to corrupt memory by sending an overlong kill reason. Attackers controlling a rogue or compromised peer server can send a reason exceeding KILLLEN that overflows a static 512-byte buffer, crashing the ircd or potentially achieving remote code execution.
Published: 2026-11-03
Score: 8.5 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Advisories

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History

Tue, 03 Nov 2026 16:30:00 +0000

Type Values Removed Values Added
Description Solanum before commit 2ea1382 contains a buffer overflow vulnerability in ms_kill() that allows malicious linked servers to corrupt memory by sending an overlong kill reason. Attackers controlling a rogue or compromised peer server can send a reason exceeding KILLLEN that overflows a static 512-byte buffer, crashing the ircd or potentially achieving remote code execution.
Title Solanum before commit 2ea1382 Buffer Overflow via Server-to-Server KILL Handler
Weaknesses CWE-120
References
Metrics cvssV3_1

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

cvssV4_0

{'score': 8.5, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}

Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-03T17:17:13.585Z

Reserved: 2026-11-03T16:19:16.085Z

Link: CVE-2026-121603

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-03T17:18:11.567

Modified: 2026-11-03T17:18:11.567

Link: CVE-2026-121603

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses