CVE-2009-0265: ISC BIND

High severity, CVSS 7.5. EPSS: 2.5% chance of exploitation in the next 30 days.

Internet Systems Consortium (ISC) BIND 9.6.0 and earlier does not properly check the return value from the OpenSSL EVP_VerifyFinal function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077 and CVE-2009-0025.

Affected products

• ISC BIND: up to and including 9.6.0

Published 2009-01-26. Last modified 2026-06-16.