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CVE-2025-14847

CISA KEV

Published December 29, 2025 · Updated April 3, 2026

high
Official Description+

MongoDB Server contains an improper handling of length parameter inconsistency vulnerability in Zlib compressed protocol headers. This vulnerability may allow a read of uninitialized heap memory by an unauthenticated client.

Affected Products

VendorProduct
MongoDBMongoDB and MongoDB Server

Patch Status

Patch by 2026-01-19

Recommended Actions

  1. Check if your systems use any of the affected products listed above.
  2. Apply vendor patches immediately if available.
  3. This vulnerability is in CISA's Known Exploited Vulnerabilities catalog — prioritize remediation.
  4. Monitor vendor advisories for updates and additional mitigations.
  5. Review logs for indicators of compromise related to CVE-2025-14847.