TI-2025-00643 Aliases CVE-2025-0755 GHSA-x43h-8pfv-xx24

MongoDB C Driver bson library may be susceptible to buffer overflow

MEDIUM 40CWE-122Published 2025-03-18 · Updated 2025-11-03

Key facts

Attack vector: Local
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.

Summary

The various bson_append functions in the MongoDB C driver library may be susceptible to buffer overflow when performing operations that could result in a final BSON document which exceeds the maximum allowable size (INT32_MAX), resulting in a segmentation fault and possible application crash. This issue affected libbson versions prior to 1.27.5, MongoDB Server v8.0 versions prior to 8.0.1 and MongoDB Server v7.0 versions prior to 7.0.16

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00788 56th percentileScored 2026-11-07

Fix Fixed libbson (MongoDB Inc): 1.27.5MongoDB Server (MongoDB Inc): 8.0.1, 7.0.16

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
MongoDB	libbson	before 1.27.5	1.27.5	Patch available	CNA
MongoDB	MongoDB Server	8.0 to before 8.0.1; 7.0 to before 7.0.16	8.0.1, 7.0.16	Patch available	CNA

libbson VendorMongoDB Affected before 1.27.5 Fixed in 1.27.5 Patch available CNA
MongoDB Server VendorMongoDB Affected 8.0 to before 8.0.1; 7.0 to before 7.0.16 Fixed in 8.0.1, 7.0.16 Patch available CNA

CPE configurations NVD · 3

CPE	Versions	Role	Vendor
cpe:2.3:a:mongodb:libbson::::::::	before 1.27.5	Vulnerable	MongoDB
cpe:2.3:a:mongodb:mongodb:::::-:::*	7.0.0 to before 7.0.16	Vulnerable	MongoDB
cpe:2.3:a:mongodb:mongodb:8.0.0::::-:::	8.0.0	Vulnerable	MongoDB

cpe:2.3:a:mongodb:libbson:*:*:*:*:*:*:*:* Versions before 1.27.5 Vulnerable ·MongoDB
cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:* Versions 7.0.0 to before 7.0.16 Vulnerable ·MongoDB
cpe:2.3:a:mongodb:mongodb:8.0.0:*:*:*:-:*:*:* Versions 8.0.0 Vulnerable ·MongoDB

Remediation

Fix · CNA libbson (MongoDB Inc) Fixed in 1.27.5
Fix · CNA MongoDB Server (MongoDB Inc) Fixed in 8.0.1, 7.0.16

Timeline

2026-10-02 Threatist record created from CVE-2025-0755
2026-10-03 Alias added: GHSA-x43h-8pfv-xx24

References

Advisory 2

TI-2018-12023 _bson_iter_next_internal in bson-iter.c in libbson 1.12.0, as used in MongoDB… CVSS 3.0HIGH 8.1
TI-2024-05923 MongoDB C Driver bson_strfreev may be susceptible to integer overflow CVSS 3.1MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences