What is CVE-2019-25544?

CVE-2019-25544 is a medium-severity vulnerability in Pidgin, classified under CWE-807. CVSS score: 6.2/10. Published 2026-03-21.

How severe is CVE-2019-25544?

Medium severity. CVSS v3 base score is 6.2 out of 10.

Vulnerability in Pidgin

CVE-2019-25544

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…

EPSS: 0.000 (7.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Pidgin — versions 2.13.0

Weakness classification (CWE)

CWE-807

References

ExploitDB-46930 (exploit)
Official Product Homepage (product)
VulnCheck Advisory: Pidgin 2.13.0 Denial of Service via Malformed Username (third-party-advisory)

Frequently asked questions

What is CVE-2019-25544?: CVE-2019-25544 is a medium-severity vulnerability in Pidgin, classified under CWE-807. CVSS score: 6.2/10. Published 2026-03-21.
How severe is CVE-2019-25544?: Medium severity. CVSS v3 base score is 6.2 out of 10.