CVE-2009-0265

Internet Systems Consortium (ISC) BIND 9.6.0 and earlier does not properly check the return value...

7.5 High

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

2.47%Up 0.4 points since Feb 4, 2022

What each source reports

NVD Score used 7.5

Record: CVE-2009-0265
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness: CWE-252, CWE-295
Updated: 2026-11-02

CVE List No score

Record: CVE-2009-0265
Updated: 2026-11-02

EUVDEUVD-2009-0270 No score

Record: EUVD-2009-0270
Updated: 2026-11-03

GitHub AdvisoriesGHSA-mrwj-9mpp-w94q 7.5

Internet Systems Consortium (ISC) BIND 9.6.0 and earlier does not properly check the return value...

Record: GHSA-mrwj-9mpp-w94q
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-252, CWE-287
Updated: 2026-11-02

Affected products

isc bind

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2009-0265 is a high vulnerability (CVSS 7.5) in Isc Bind, published January 26, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.47%, the 84th percentile. No source names a fixed version.