Dashboard / CVE-2026-121603

CVE-2026-121603

HIGH
MEDIUM Priority: 0.06 BB Relevance: 62/100
Published: 2026-11-03 Modified: 2026-11-12 First seen: 2026-11-03 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: High
UI: None
S: X
AT: None
VC: High
VI: High
VA: None

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.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
solanum-ircd solanum 0 < 2ea1382e4262b212a91034258c466f0f6754cd61
solanum-ircd solanum 0 < 2ea1382e4262b212a91034258c466f0f6754cd61

References & Advisories (5)

Bug Bounty Relevance

62 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

8.5 / 10.0 v4.0
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.76%
Raw Score 0.007640
Percentile 56.0%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00764
2026-11-13
0.00764
2026-11-12
0.00764
2026-11-10
0.00764
2026-11-09
0.00764
2026-11-08
0.00764
2026-11-07
0.00764
2026-11-06
0.00764
2026-11-05
0.00764
2026-11-04
0.00764

Intelligence Sources

mitre ref →
nvd ref →

External Links