CVE-2026-41285
MEDIUM
4.3
CVSS Score
Published: April 20, 2026 at 12:00 AM UTC
Updated: June 17, 2026 at 10:46 AM UTC
1 product affected across 1 vendorOpenBSD
Using N/A by N/A?
Get instant alerts when new vulnerabilities affect N/A - before attackers find them.
Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM4.3
Exploit prediction
EPSS 0.2%
SSVC
No known exploit
Description
In OpenBSD through 7.8, the slaacd and rad daemons have an infinite loop when they receive a crafted ICMPv6 Neighbor Discovery (ND) option (over a local network) with length zero, because of an "nd_opt_len * 8 - 2" expression with no preceding check for whether nd_opt_len is zero.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (3)
Patch
Source: cverecord
https://github.com/openbsd/src/commit/086c5738bcd3c203bcc08d024fcf983cb409115fSSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
4.3MEDIUMmitre
Vector?
Quick Info
StatusANALYZED
CWE
CWE-1284CWE-835
Get alerted
Stop reading CVE feeds looking for your own stack
Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.
Free plan, no card