CVE-2021-27229

HIGH
Published Feb 16, 20215y ago · Modified Jun 17, 20262w ago
8.8 CVSS 3.1
High
Find Similar
Published Feb 16, 2021 5y ago
Last Modified Jun 17, 2026 2w ago

Description

Mumble before 1.3.4 allows remote code execution if a victim navigates to a crafted URL on a server list and clicks on the Open Webpage text.

CVSS Details

Base Score
8.8
Exploitability
2.8
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-59

Affected Products 2

VendorProductVersionRange
mumblemumble* <1.3.4
debiandebian_linux9.0any

References 5

  • github.com https://github.com/mumble-voip/mumble/commit/e59ee87abe249f345908c7d568f6879d16bfd648
    PatchThird Party Advisory
  • github.com https://github.com/mumble-voip/mumble/compare/1.3.3...1.3.4
    PatchThird Party Advisory
  • github.com https://github.com/mumble-voip/mumble/pull/4733
    PatchThird Party Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2021/02/msg00022.html
    Mailing ListThird Party Advisory
  • security.gentoo.org https://security.gentoo.org/glsa/202105-13
    Third Party Advisory

Remediation

  • github.com https://github.com/mumble-voip/mumble/commit/e59ee87abe249f345908c7d568f6879d16bfd648
    PatchThird Party Advisory
  • github.com https://github.com/mumble-voip/mumble/compare/1.3.3...1.3.4
    PatchThird Party Advisory
  • github.com https://github.com/mumble-voip/mumble/pull/4733
    PatchThird Party Advisory