CVE-2025-6709: mongodb inc mongodb server Improper Input Validation
Vulnerability summary
CVE-2025-6709 is a high (CVSS 7.5) Improper Input Validation vulnerability in mongodb inc mongodb server. EPSS estimates a 0.51% chance of exploitation in the next 30 days, higher than 42.3% of scored vulnerabilities.
Timeline
- 26-06-2025PublishedVulnerability first disclosed.
- 26-06-2025Last modifiedVulnerability information updated.
Description
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 metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.51%
Chance of exploitation in the next 30 days
Percentile
42%
Versus all other CVEs
30-day change
0.00 pp
From 0.51% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Mongodb1 product
- mongodb≥ 6.0.0, < 6.0.21 | ≥ 7.0.0, < 7.0.17 | ≥ 8.0.0, < 8.0.5
Mongodb inc1 product
- mongodb server≥ 7.0, < 7.0.17 | ≥ 8.0, < 8.0.5 | ≥ 6.0, < 6.0.21
Ubuntu1 product
- mongodbAll versions (No fix recorded)
3 vendors · 3 products