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CVE-2016-2373

21
FAUCET Score

CVE-2016-2373 is a denial-of-service vulnerability affecting Pidgin's handling of the MXIT protocol, specifically impacting Canonical and Debian distributions of Pidgin and Ubuntu Linux. A malicious server or user can trigger an out-of-bounds read by sending specially crafted MXIT data with an invalid mood. This vulnerability has a CVSS score of 5.9 (Medium), indicating a high availability impact with high attack complexity, but no impact on confidentiality or integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.10.12CPE matchmatch criteria
cpe:2.3:a:pidgin:pidgin:*:*:*:*:*:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
15.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.9MEDIUM

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.30%
Probability of exploitation in next 30 days
EPSS Percentile
81.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0230 is in the 70th percentile among its peer group of 19,955 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

Vendor Patches (3)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: pidgin
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: pidgin
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: pidgin

Vendor Advisories (1)

redhatCVE-2016-2373Low

pidgin: MXIT Contact Mood Denial of Service Vulnerability

Jun 21, 2016

References

security.gentoo.org / glsa/201701-38
debian.org / security/2016/dsa-3620
Third Party Advisory
pidgin.im / news/security
PatchVendor Advisory
securityfocus.com / bid/91335
Third Party AdvisoryVDB Entry
talosintelligence.com / reports/TALOS-2016-0141
Technical DescriptionThird Party Advisory
ubuntu.com / usn/USN-3031-1
Third Party Advisory