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CVE-2011-3207

21
FAUCET Score

CVE-2011-3207 describes a vulnerability in OpenSSL versions 1.0.x before 1.0.0e, specifically within the crypto/x509/x509_vfy.c file. This flaw stems from uninitialized structure members, allowing remote attackers to bypass Certificate Revocation List (CRL) validation by manipulating the nextUpdate value to a past time. With a CVSS score of 5.0 (Medium), this vulnerability has a low attack complexity and requires no authentication, potentially leading to integrity compromise (I:P) without impacting confidentiality or availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.0CPE matchmatch criteria
cpe:2.3:a:openssl:openssl:1.0.0:*:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:openssl:openssl:1.0.0:beta1:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:openssl:openssl:1.0.0:beta2:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:openssl:openssl:1.0.0:beta3:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:openssl:openssl:1.0.0:beta4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.01%
Probability of exploitation in next 30 days
EPSS Percentile
91.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0501 is in the 88th percentile among its peer group of 23,701 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: openssl-0:1.0.0-10.el6_1.5
View patch

Vendor Advisories (1)

redhatCVE-2011-3207Moderate

openssl: CRL verification vulnerability

Sep 6, 2011

References

cvs.openssl.org / chngview
Patch
lists.apple.com / archives/security-announce/2013/Jun/msg00000.html
lists.fedoraproject.org / pipermail/package-announce/2011-September/065712.html
lists.fedoraproject.org / pipermail/package-announce/2011-September/065744.html
lists.fedoraproject.org / pipermail/package-announce/2012-November/092905.html
marc.info
openssl.org / news/secadv_20110906.txt
Vendor Advisory
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/45956
secunia.com / advisories/57353
support.apple.com / kb/HT5784
www-01.ibm.com / support/docview.wss
mandriva.com / security/advisories
redhat.com / support/errata/RHSA-2011-1409.html
securitytracker.com / id