PT-2026-26889 · Pidgin+1 · Pidgin

Alejandra Sánchez · Published 2026-03-21 · Updated 2026-03-21 · CVE-2019-25544

Positive Technologies (AI Summary)

CVSS v3.1

6.2

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Pidgin version 2.13.0

Description A denial of service issue allows local attackers to crash the application by providing an excessively long username string during account creation. By inputting a buffer of 1000 characters in the username field, an attacker can trigger a crash when joining a chat, rendering the application unavailable.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Weakness Enumeration

CWE-807

Related Identifiers

CVE-2019-25544

Affected Products

Pidgin

References · 7

• 🔥 https://exploit-db.com/exploits/46930 · Exploit
• https://ubuntu.com/security/CVE-2019-25544 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-25544 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2019-25544 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2019-25544 · Security Note
• https://vulncheck.com/advisories/pidgin-denial-of-service-via-malformed-username · Note
• https://pidgin.im · Note