Is CVE-2019-25544 actively exploited?

CVE-2019-25544 has no public evidence of in-the-wild exploitation as of 2026-04-16.

What is the CVSS score for CVE-2019-25544?

CVE-2019-25544 has a CVSS score of 6.9 (MEDIUM severity). Vector: 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X.

How do I patch CVE-2019-25544?

Patch guidance is available from pidgin security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2019-25544.

CVE-2019-25544 - remediation guidance & executive summary

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.

CVSS Metrics

Vector: 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector: local
Complexity: low
Privileges: none
User Action: none
Confidentiality: undefined
Integrity: undefined
Availability: undefined
Weaknesses: CWE-807

Metadata

Primary Vendor: PIDGIN
Published: 3/21/2026
Last Modified: 4/16/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

pidgin : pidgin

Remediation Guidance

Executive Summary

Cite this page

CVE-2019-25544. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2019-25544

View on NIST NVD

CVE-2019-25544 vulnerability