CVE-2026-121603

MediumCVSS 6.5/10Last modified Nov 12, 2026

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-120

Affected software

Vendor	Product	Versions
solanum-ircd	solanum	< 2ea1382e4262b212a91034258c466f0f6754cd61

References

Timeline

Published: Nov 3, 2026
Last modified: Nov 12, 2026
NVD status: Deferred

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