Is CVE-2026-5170 actively exploited?

No active exploitation of CVE-2026-5170 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-5170 be exploited remotely?

Yes. CVE-2026-5170 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-5170?

CVE-2026-5170 has a CVSS score of 5.3 (MEDIUM).

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MEDIUM

CVE-2026-5170

CWE-617Published: March 30, 2026· Updated: Apr 2, 2026

5.3

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:11.9th

Official Description

A user with access to the cluster with a limited set of privilege actions can trigger a crash of a mongod process during the limited and unpredictable window when the cluster is being promoted from a replica set to a sharded cluster. This may cause a denial of service by taking down the primary of the replica set.

This issue affects MongoDB Server v8.2 versions prior to 8.2.2, MongoDB Server v8.0 versions between 8.0.18, MongoDB Server v7.0 versions between 7.0.31.

NVD Source

Technical Analysis

CVE-2026-5170 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 5.3.