CVE-2019-25544

6.9 mediumEPSS 0.2%

Medium (6.9) in pidgin pidgin. EPSS 0.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

6.9 medium

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

5.5 medium

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 9% of CVEs (scores of 2026-10-31)
CWE: CWE-807
Published: 2026-03-21
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

pidgin:pidgin

References

https://pidgin.im/
https://www.exploit-db.com/exploits/46930
https://www.vulncheck.com/advisories/pidgin-denial-of-service-via-malformed-username

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