SB2026012301 - Debian update for bind9
Published: January 23, 2026
Security Bulletin ID
SB2026012301
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Reachable assertion (CVE-ID: CVE-2025-13878)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a reachable assertion when handling BRID/HHIT records. A remote attacker can send a specially crafted DNS request to the server and perform a denial of service attack.
Remediation
Install update from vendor's website.