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CVE-2012-5237

15
FAUCET Score

CVE-2012-5237 describes a denial-of-service vulnerability in Wireshark versions 1.8.x prior to 1.8.3, specifically within the HSRP dissector's dissect_hsrp function. A remote attacker on the same network segment could trigger an infinite loop by sending a specially crafted packet. This vulnerability has a low severity CVSS score of 3.3, indicating a low potential impact of only partial denial of service, and requires adjacent network access with low attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.8.0CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:1.8.0:*:*:*:*:*:*:*
1.8.1CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:1.8.1:*:*:*:*:*:*:*
1.8.2CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:1.8.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

3.3LOW

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
ADJACENT_NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
6.5
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.89%
Probability of exploitation in next 30 days
EPSS Percentile
55.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0089 is in the 41st percentile among its peer group of 94 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.0 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-2012-5237Low

wireshark: Infinite loop in the HSRP dissector

Oct 2, 2012

References

anonsvn.wireshark.org / viewvc/trunk/epan/dissectors/packet-hsrp.c
anonsvn.wireshark.org / viewvc
Patch
osvdb.org / 85884
bugs.wireshark.org / bugzilla/show_bug.cgi
exchange.xforce.ibmcloud.com / vulnerabilities/79009
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14992
securityfocus.com / bid/55754
securitytracker.com / id
wireshark.org / security/wnpa-sec-2012-26.html
Vendor Advisory