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CVE-2012-3826

25
FAUCET Score

CVE-2012-3826 describes multiple integer underflow vulnerabilities in Wireshark versions 1.4.x before 1.4.13 and 1.6.x before 1.6.8, specifically within the R3 dissector, which can lead to a denial of service (loop). This vulnerability has a CVSS score of 3.3, indicating a low severity, as it requires adjacent network access (AV:A) and results in partial availability impact (A:P) without requiring authentication. While there is no evidence of active exploitation or inclusion in the CISA KEV catalog, an exploit for a related denial of service vulnerability in Wireshark dissectors is available on ExploitDB, and there is minimal community discussion or media coverage surrounding this specific CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.4.0CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:1.4.0:*:*:*:*:*:*:*
1.4.1CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:1.4.1:*:*:*:*:*:*:*
1.4.2CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:1.4.2:*:*:*:*:*:*:*
1.4.3CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:1.4.3:*:*:*:*:*:*:*
1.4.4CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:1.4.4:*:*:*:*:*:*:*

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
3.44%
Probability of exploitation in next 30 days
EPSS Percentile
87.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-18919 · May 24, 2012
This CVE's current EPSS score of 0.0344 is in the 89th 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-2012-3826Low

wireshark: Integer overflows in the R3 dissector, leading to DoS (wnpa-sec-2012-08)

Apr 16, 2012

References

bugs.wireshark.org / bugzilla/show_bug.cgi
Vendor Advisory
secunia.com / advisories/49226
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15536
securitytracker.com / id
wireshark.org / security/wnpa-sec-2012-08.html
Vendor Advisory