CVE-2025-6709: high-severity vulnerability in MongoDB Server
Pre-Authentication Denial of Service Vulnerability in MongoDB Server's OIDC Authentication
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.5%
The MongoDB Server is susceptible to a denial of service vulnerability due to improper handling of specific date values in JSON input when using OIDC authentication. This can be reproduced using the mongo shell to send a malicious JSON payload leading to an invariant failure and server crash. This issue affects MongoDB Server v7.0 versions prior to 7.0.17 and MongoDB Server v8.0 versions prior to 8.0.5.
The same issue affects MongoDB Server v6.0 versions prior to 6.0.21, but an attacker can only induce denial of service after authenticating.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
MongoDB Inc · MongoDB ServerRelated CVEs — MongoDB Server
In the same product, most dangerous first.
CVE-2026-25611HIGHPre-Authentication Memory Exhaustion Denial of Service in MongoDB ServerEPSS 0.9%CVE-2025-0755HIGHMongoDB C Driver bson library may be susceptible to buffer overflowEPSS 0.8%CVE-2024-8305MEDIUMMongoDB Server secondaries may crash due to forced index constraintsEPSS 0.6%CVE-2024-10921MEDIUMImproper neutralization of null bytes may lead to buffer over-reads in MongoDB ServerEPSS 0.6%CVE-2024-3372HIGHMongoDB Server may have unexpected application behaviour due to invalid BSONEPSS 0.5%CVE-2024-1351HIGHMongoDB Server may allow successful untrusted connectionEPSS 0.5%