ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2025-71264

Mumble before 1.6.870 is prone to an out-of-bounds array access, which may result in denial of service (client crash).

Published Mar 16, 2026 · catalog updated Jun 17, 2026 · Mumble before 1.6.870 is

Check if you run it

No confirmed exploitation is on record for CVE-2025-71264. EPSS is 0.29%. Act only if a listed version of Mumble before 1.6.870 is is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Mumble before 1.6.870 is).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.29%
Remediation
Advisory link
Affected products
cpe mumble/mumble

Mumble before 1.6.870 is prone to an out-of-bounds array access, which may result in denial of service (client crash).

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe mumble/mumbleversion unspecified

How to fix CVE-2025-71264

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-71264. EPSS is 0.29%. Act only if a listed version of Mumble before 1.6.870 is is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-125: Out-of-bounds Read. EPSS 0.29%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 16, 2026 · NIST NVD

    Detected

    Mumble before 1.6.870 is prone to an out-of-bounds array access, which may result in denial of service (client crash).

  2. Jun 17, 2026 · NIST NVD

    Updated

    Mumble before 1.6.870 is prone to an out-of-bounds array access, which may result in denial of service (client crash).

Sources

  • CVE.orgVulnerability recordCVE-2025-71264

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-71264

    30-day exploitation probability 0.3%

    first.org
  • NIST NVDVulnerability recordCVE-2025-71264

    Mumble before 1.6.870 is prone to an out-of-bounds array access, which may result in denial of service (client crash).

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.