CVE-2026-84968

6.9 mediumEPSS 0.2%

Medium (6.9) in mongodb php driver. EPSS 0.2% chance of exploitation in the next 30 days.

An out-of-bounds read in the BSON decoding component of the MongoDB PHP driver may allow an unauthenticated party who supplies specially formed input to have a small amount of adjacent process memory copied into an error message that is returned to application code. This may result in unintended disclosure of limited memory contents.

Severity

CVSS 4.0

6.9 medium

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

5.3 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 9% of CVEs (scores of 2026-10-31)
CWE: CWE-125
Published: 2026-09-03
Modified: 2026-09-10
Record from: the NVD, synced 2026-10-19

Affected

mongodb:php_driver

References

https://jira.mongodb.org/browse/PHPC-2744

Check your stack JSON