CVE-2026-121603
Last modified
CVE-2026-121603 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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..
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
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| solanum-ircd | solanum | < 2ea1382e4262b212a91034258c466f0f6754cd61 |
References
Timeline
- Published
- Last Modified
- Status
- Received
Frequently Asked Questions
What is CVE-2026-121603?
How severe is CVE-2026-121603?
How do I fix CVE-2026-121603?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-121597A weakness has been identified in TOTOLINK A950RG 4.1.2cu.52…9.9
- CVE-2026-121598A security vulnerability has been detected in TOTOLINK A950R…9.9
- CVE-2026-121599A vulnerability was detected in TOTOLINK A950RG 4.1.2cu.5268…9.9
- CVE-2026-1216The RSS Aggregator plugin for WordPress is vulnerable to Ref…7.2
- CVE-2026-121600A flaw has been found in TOTOLINK A950RG 4.1.2cu.5268_B20221…9.9
- CVE-2026-121602Solanum before commit 2ce64de contains a heap-based buffer o…6.5
- CVE-2026-121604wlroots before 0.20.2 contains an out-of-bounds read vulnera…3.3
- CVE-2026-121606A vulnerability has been found in Qihoo 360 D621-2, D603-2, …10
- CVE-2026-121607A vulnerability was found in Qihoo 360 D603-2, D600-2, D606-…10
- CVE-2026-121608A vulnerability was determined in Qihoo 360 D603-2, D600-2 a…7.3
- CVE-2026-121609A vulnerability was identified in Qihoo 360 Whole Home Route…10
- CVE-2026-12161Improper input validation in the SSH Elevate Shell feature a…8.8
Are you affected by CVE-2026-121603?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST