The vulnerability of the Mattermost instant messaging application, related to insufficient protection of sensitive data, allows a perpetrator to carry out a brute-force attack.
🗓️ 24 Oct 2025 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 8 Views
| Reporter | Title | Published | Views | Family All 22 |
|---|---|---|---|---|
 | CVE-2025-54499 | 16 Oct 202509:17 | – | circl |
 | Mattermost 安全漏洞 | 16 Oct 202500:00 | – | cnnvd |
 | CVE-2025-54499 | 16 Oct 202508:17 | – | cve |
 | CVE-2025-54499 Insecure string comparison enables timing attacks | 16 Oct 202508:17 | – | cvelist |
 | EUVD-2025-34730 | 16 Oct 202509:30 | – | euvd |
 | Mattermost has an Observable Timing Discrepancy vulnerability | 16 Oct 202509:30 | – | github |
 | Mattermost Server 10.5.x < 10.5.11 / 10.11.x < 10.11.3 / 10.12.0 Multiple Vulnerabilities (MMSA-2025-00497, MMSA-2025-00496, MMSA-2025-00516) | 22 Oct 202500:00 | – | nessus |
 | CVE-2025-54499 | 16 Oct 202509:15 | – | nvd |
 | govulncheck-vulndb-0.0.20251105T184115-1.1 on GA media (moderate) | 8 Nov 202500:00 | – | opensuse |
 | GHSA-XR3W-RMVJ-F6M7 Mattermost has an Observable Timing Discrepancy vulnerability | 16 Oct 202509:30 | – | osv |
10
Node
OR
Data
Build on a solid foundation with Vulners data
We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data
Api
Power your application with Vulners API
The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access
App
Assess and manage vulnerabilities with Vulners tools
Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation
24 Oct 2025 00:00Current
5.7Medium risk
Vulners AI Score5.7
CVSS 22.1
CVSS 33.1
EPSS0.00251