7.5 HighCWE-771
CVE-2026-3039
ISC BIND 9 vulnerability
ISCBIND 9
Status
- Not in CISA KEV
- Vendor fix available
Exploit probabilityEPSSchecked 25 Oct
1.1%probability of exploitation in the next 30 days
Higher than 65% of scored CVEs
SeverityCVSS
7.5High
Description NVD
BIND servers that are configured to use TKEY-based authentication via GSS-API tokens are vulnerable to excessive memory consumption when receiving and processing maliciously-constructed packets. Typically these servers will be found in Active Directory integrated DNS deployments and/or Kerberos-secured DNS environments. This issue affects BIND 9 versions 9.0.0 through 9.16.50, 9.18.0 through 9.18.48, 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, 9.9.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.
Coverage 1 article · 1 outlet
- BIND 9 flaws let attackers crash DNS and drain bandwidthSecurityOnline · first in our coverage