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CVE-2009-0265

21
FAUCET Score

CVE-2009-0265 affects ISC BIND 9.6.0 and earlier, stemming from an improper check of the OpenSSL EVP_VerifyFinal function's return value. This allows remote attackers to bypass certificate chain validation through a malformed SSL/TLS signature. With a CVSS score of 7.5 (High), this vulnerability presents a significant risk, allowing unauthenticated remote attackers to compromise confidentiality without user interaction. Despite its severity, there is no known active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 9.6.0CPE matchmatch criteria
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.47%
Probability of exploitation in next 30 days
EPSS Percentile
82.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0247 is in the 69th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2009-0265

CVE-2009-0265

References

groups.google.com / group/comp.protocols.dns.bind/browse_thread/thread/49ef622c8329fd33
Mailing List
secunia.com / advisories/33559
Broken LinkVendor Advisory
slackware.com / security/viewer.php
Mailing ListPatch
isc.org / node/373
Broken LinkVendor Advisory
mandriva.com / security/advisories
Broken Link
vupen.com / english/advisories/2009/0043
Broken Link