CVE-2019-25544
CWE-807Published: March 21, 2026· Updated: Mar 23, 2026
Official Description
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.
Technical Analysis
CVE-2019-25544 requires local access, meaning attackers must already have a foothold on the target system.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.2.
CVSS v3.1 Vector Breakdown
Exploit & PoC Resources
All References (3)
Quick Facts
Related CVEs (CWE-807)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2019-25544 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts