Home/CVE/Pidgin 2.13.0 contains a denial of service vulnerability that allows local attackers to crash the application by providi
CVE

CVE-2019-25544

Pidgin 2.13.0 contains a denial of service vulnerability that allows local attackers to crash the application by providi

Pidgin 2.13.0 contains a denial of service vulnerability that allows local attackers to crash the application by providing an excessively long username string during account creation. Attackers can input a buffer of 1000 characters in the username field and trigger a crash when joining a chat, causing the application to become unavailable.

MEDIUM · CVSS 6.2 EPSS 0.00025
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-807Reliance on Untrusted Inputs in a Security Decision
▤

Affected Products & Versions

1
pidginall versions
⚠

Public Exploits & PoCs

1
pocwww.exploit-db.com · 46930www.exploit-db.com
▣

Scoring & Timeline

6.2
MEDIUM · CVSS v3.1 · disclosure@vulncheck.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD21 Mar 2026 · 01:16 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
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References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://pidgin.im/Product
https://www.vulncheck.com/advisories/pidgin-denial-of-service-via-malformed-usernameThird Party Advisory
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