How severe is CVE-2025-0755?

CVE-2025-0755 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-0755 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-0755?

CVE-2025-0755 primarily affects Mongodb Libbson. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-0755?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-0755 have an EU (EUVD) identifier?

Yes. CVE-2025-0755 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-6467.

When was CVE-2025-0755 published?

CVE-2025-0755 was published on 2025-03-18 and last updated on 2026-06-17.

CVE-2025-0755

CVE-2025-0755 is a high-severity vulnerability in Mongodb Libbson with a CVSS 3.x base score of 8.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-122.

Key facts

Severity: High (CVSS 3.x base score 8.4)
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-6467
Weakness: CWE-122
Affected product: Mongodb Libbson
Published: 2025-03-18
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2025-0755?: 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
How severe is CVE-2025-0755?: CVE-2025-0755 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-0755 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-0755?: CVE-2025-0755 primarily affects Mongodb Libbson. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-0755?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-0755 have an EU (EUVD) identifier?: Yes. CVE-2025-0755 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-6467.
When was CVE-2025-0755 published?: CVE-2025-0755 was published on 2025-03-18 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:mongodb:libbson:*:*:*:*:*:*:*:*
cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*
cpe:2.3:a:mongodb:mongodb:8.0.0:*:*:*:-:*:*:*

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