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CVE-2006-7239

17
FAUCET Score

CVE-2006-7239 describes a denial-of-service vulnerability in GnuTLS versions prior to 1.4.2. A remote attacker can crash the application by presenting a crafted X.509 certificate that specifies an unsupported hash algorithm, leading to a NULL pointer dereference. This vulnerability has a CVSS score of 5.0 (medium severity), indicating it can be exploited over a network with low complexity to cause a partial denial of service. There is no evidence of active exploitation, and no public exploit code is available in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.4.1CPE matchmatch criteria
cpe:2.3:a:gnu:gnutls:*:*:*:*:*:*:*:*
1.0.16CPE matchmatch criteria
cpe:2.3:a:gnu:gnutls:1.0.16:*:*:*:*:*:*:*
1.0.17CPE matchmatch criteria
cpe:2.3:a:gnu:gnutls:1.0.17:*:*:*:*:*:*:*
1.0.18CPE matchmatch criteria
cpe:2.3:a:gnu:gnutls:1.0.18:*:*:*:*:*:*:*
1.0.19CPE matchmatch criteria
cpe:2.3:a:gnu:gnutls:1.0.19:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

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

Exploit Intelligence

EPSS Score
1.54%
Probability of exploitation in next 30 days
EPSS Percentile
72.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0155 is in the 55th percentile among its peer group of 23,723 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

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 5Fixed in: gnutls-0:1.4.1-7.el5_8.1
View patch

Vendor Advisories (1)

redhatCVE-2006-7239Low

gnutls: unknown hash algorithm NULL pointer derefence [GNUTLS-SA-2006-2]

Aug 12, 2006

References

lists.gnupg.org / pipermail/gnutls-dev/2006-August/001190.html
lists.gnupg.org / pipermail/gnutls-dev/2006-August/001192.html
Patch
gnu.org / software/gnutls/security.html
Vendor Advisory