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CVE-2011-1958

17
FAUCET Score

CVE-2011-1958 describes a denial-of-service vulnerability affecting Wireshark versions 1.2.x before 1.2.17 and 1.4.x before 1.4.7. An attacker can trigger a NULL pointer dereference and application crash by convincing a user to open a specially crafted Diameter dictionary file. This vulnerability has a CVSS score of 4.3, indicating a medium attack complexity and a low impact, as it only leads to application unavailability. There is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.2CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:1.2:*:*:*:*:*:*:*
1.2.0CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:1.2.0:*:*:*:*:*:*:*
1.2.1CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:1.2.1:*:*:*:*:*:*:*
1.2.2CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:1.2.2:*:*:*:*:*:*:*
1.2.3CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:1.2.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.88%
Probability of exploitation in next 30 days
EPSS Percentile
85.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0288 is in the 78th percentile among its peer group of 19,956 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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 (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: wireshark-0:1.0.15-5.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: wireshark-0:1.2.15-2.el6_2.1
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: wireshark

Vendor Advisories (1)

redhatCVE-2011-1958Low

(64bit): NULL pointer dereference by processing of a corrupted Diameter dictionary file

May 31, 2011

References

lists.fedoraproject.org / pipermail/package-announce/2011-June/061290.html
lists.fedoraproject.org / pipermail/package-announce/2011-June/061437.html
lists.fedoraproject.org / pipermail/package-announce/2011-June/061477.html
openwall.com / lists/oss-security/2011/05/31/20
openwall.com / lists/oss-security/2011/06/01/1
openwall.com / lists/oss-security/2011/06/01/11
rhn.redhat.com / errata/RHSA-2013-0125.html
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/44449
secunia.com / advisories/44958
secunia.com / advisories/45149
secunia.com / advisories/48947
exchange.xforce.ibmcloud.com / vulnerabilities/67791
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15045
debian.org / security/2011/dsa-2274
securityfocus.com / bid/48066
wireshark.org / security/wnpa-sec-2011-07.html
wireshark.org / security/wnpa-sec-2011-08.html