CVE-2025-14847

HIGH

CVSS v3

7.5

HIGH

EPSS Score

64.8%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

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.

Technical Details

Published
12/19/2025

Frequently Asked Questions

What is CVE-2025-14847?

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.

Is CVE-2025-14847 actively exploited?

Active exploitation of CVE-2025-14847 has not been confirmed. The EPSS score is 64.8%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-14847?

CVE-2025-14847 has a CVSS v3 base score of 7.5 (HIGH severity).

Is CVE-2025-14847 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.