CVE-2019-25544
Pidgin 2.13.0 Denial of Service via Malformed Username
- State
- Published
- Severity
- 6.9 Medium
- Published
- Mar 21, 2026
- Updated
- Mar 24, 2026
- Reserved
- Mar 21, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 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 | VulnCheck |
| 3.1 | 6.2 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | VulnCheck |
Weaknesses
- CWE-807 Reliance on Untrusted Inputs in a Security Decision
Affected Products
| Product | Versions |
|---|---|
PidginPidgin |
|
References
- ExploitDB-46930exploit
- Official Product Homepageproduct
- VulnCheck Advisory: Pidgin 2.13.0 Denial of Service via Malformed Usernamethird-party-advisory
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