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CVE-2025-14847

HighCVSS 8.7 / 10
Published Dec 19, 2025·Last modified Apr 12, 2026
Affected Components(0)

No affected components available

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.

Risk Scores
Base Score
8.7

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability.

Threat Intelligence
8.7

Exploitation activity has been observed. Apply available patches or mitigations urgently.

EPSS
83.01%

The exploit probability is critical. The vulnerability is very likely to be exploited in the next 30 days.

Exploit
Attacked

This vulnerability is actively being exploited in the wild. Please take immediate action to mitigate the risk.

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