Pidgin 2.13.0 Account Creation Username reliance on untrusted inputs in a security decision

CVSS Meta Temp Score
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Pidgin 2.13.0. Impacted is an unknown function of the component Account Creation Handler. Performing a manipulation of the argument Username results in reliance on untrusted inputs in a security decision. This vulnerability is known as CVE-2019-25544. Attacking locally is a requirement. Furthermore, an exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Pidgin 2.13.0. This affects an unknown code of the component Account Creation Handler. The manipulation of the argument username with an unknown input leads to a reliance on untrusted inputs in a security decision vulnerability. CWE is classifying the issue as CWE-807. The product uses a protection mechanism that relies on the existence or values of an input, but the input can be modified by an untrusted actor in a way that bypasses the protection mechanism. This is going to have an impact on availability. The summary by CVE is:

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.

The weakness was published by Alejandra Sánchez as 46930. It is possible to read the advisory at exploit-db.com. This vulnerability is uniquely identified as CVE-2019-25544 since 03/21/2026. The exploitability is told to be easy. Attacking locally is a requirement. Technical details and a public exploit are known.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 303376 (Linux Distros Unpatched Vulnerability : CVE-2019-25544), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Exploit-DB (46930) and Tenable (303376). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.6

VulDB Base Score: 3.3
VulDB Temp Score: 3.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.2
CNA Vector (VulnCheck): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Reliance on untrusted inputs in a security decision
CWE: CWE-807 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 303376
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2019-25544

Exploit-DB: 🔒

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

03/21/2026 Advisory disclosed
03/21/2026 +0 days CVE reserved
03/21/2026 +0 days VulDB entry created
03/24/2026 +3 days VulDB entry last update

Sourcesinfo

Advisory: 46930
Researcher: Alejandra Sánchez
Status: Not defined

CVE: CVE-2019-25544 (🔒)
GCVE (CVE): GCVE-0-2019-25544
GCVE (VulDB): GCVE-100-352335
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/21/2026 15:39
Updated: 03/24/2026 12:19
Changes: 03/21/2026 15:39 (80), 03/24/2026 12:19 (2)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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