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CVE-2011-2175

17
FAUCET Score

CVE-2011-2175 describes an integer underflow vulnerability in Wireshark versions 1.2.x before 1.2.17 and 1.4.x before 1.4.7. This flaw, located in the visual_read function, allows a remote attacker to trigger a heap-based buffer over-read by providing a specially crafted Visual Networks file, leading to a denial of service (application crash). The vulnerability has a CVSS score of 4.3, indicating a medium attack complexity and potential for partial availability impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion 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
2.10%
Probability of exploitation in next 30 days
EPSS Percentile
79.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0210 is in the 66th percentile among its peer group of 19,954 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 (4)

redhatpatch availablevia nvd_reference
View patch
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-2011-2175Low

wireshark: Heap-based buffer over-read in Visual Networks dissector

May 31, 2011

References

anonsvn.wireshark.org / viewvc
Patch
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
bugs.wireshark.org / bugzilla/show_bug.cgi
Exploit
bugzilla.redhat.com / show_bug.cgi
ExploitPatch
secunia.com / advisories/44449
secunia.com / advisories/44958
secunia.com / advisories/45149
secunia.com / advisories/48947
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14645
debian.org / security/2011/dsa-2274
securityfocus.com / bid/48066
wireshark.org / security/wnpa-sec-2011-07.html
PatchVendor Advisory
wireshark.org / security/wnpa-sec-2011-08.html
Vendor Advisory