CVE-2025-14847

HighActively exploited (CISA KEV)

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.

SeverityHigh
CVSS8.7
Exploit probability100. percentile83.2%
ProductMongoDB and MongoDB Server
PublishedDec 19, 2025
First seenDec 19, 2025
Added to KEVDec 29, 2025
Weakness typeCWE-130CWE-130

How to fix

CISA required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

CISA due date: Jan 19, 2026
Update
  • mongodb mongodb4.4.30, 5.0.32, 6.0.27, 7.0.28, 8.0.17, 8.2.3 or later

Affected products

ProductAffected versionsFixed in
mongodb mongodb3.6.0 ≤ v < 4.4.30, 5.0.0 ≤ v < 5.0.32, 6.0.0 ≤ v < 6.0.27, 7.0.0 ≤ v < 7.0.28, 8.0.0 ≤ v < 8.0.17, 8.2.0 ≤ v < 8.2.34.4.30, 5.0.32, 6.0.27, 7.0.28, 8.0.17, 8.2.3

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CVE-2025-14847 · MongoDB and MongoDB Server · Dark Radar