CVE-2025-14847

Description

Mismatched length fields in Zlib compressed protocol headers may allow a read of uninitialized heap memory by an unauthenticated client. This issue affects all MongoDB Server v7.0 prior to 7.0.28 versions, MongoDB Server v8.0 versions prior to 8.0.17, MongoDB Server v8.2 versions prior to 8.2.3, MongoDB Server v6.0 versions prior to 6.0.27, MongoDB Server v5.0 versions prior to 5.0.32, MongoDB Server v4.4 versions prior to 4.4.30, MongoDB Server v4.2 versions greater than or equal to 4.2.0, MongoDB Server v4.0 versions greater than or equal to 4.0.0, and MongoDB Server v3.6 versions greater than or equal to 3.6.0.

How to fix CVE-2025-14847

To remediate CVE-2025-14847, upgrade the affected package to a fixed version below.

• —upgrade to 4.4.30 or later

Is CVE-2025-14847 being exploited?

Yes — CVE-2025-14847 is on the CISA Known Exploited Vulnerabilities (KEV) catalog. Patch immediately.

Affected packages (1)

• >= 4.4.0, < 4.4.30, >= 5.0.0, < 5.0.32, >= 6.0.0, < 6.0.27, >= 7.0.0, < 7.0.28, >= 8.0.0, < 8.0.17, >= 8.2.0, < 8.2.3

CVSS scores

References (4)

• WEBjira.mongodb.org/browse/SERVER-115508
• WEBnvd.nist.gov/vuln/detail/CVE-2025-7259
• WEBwww.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-14847
• WEBwww.openwall.com/lists/oss-security/2025/12/29/21