How severe is CVE-2025-11979?

CVE-2025-11979 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-11979 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-11979?

CVE-2025-11979 affects Mongodb. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-11979?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-11979 have an EU (EUVD) identifier?

Yes. CVE-2025-11979 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-35086.

When was CVE-2025-11979 published?

CVE-2025-11979 was published on 2025-10-20 and last updated on 2026-06-17.

CVE-2025-11979

CVE-2025-11979 is a medium-severity vulnerability in Mongodb with a CVSS 3.x base score of 5.3. 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-416.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-35086
Weakness: CWE-416
Affected product: Mongodb
Published: 2025-10-20
Last modified: 2026-06-17

Description

An authorized user may crash the MongoDB server by causing buffer over-read. This can be done by issuing a DDL operation while queries are being issued, under some conditions. This issue affects MongoDB Server v7.0 versions prior to 7.0.25, MongoDB Server v8.0 versions prior to 8.0.15, and MongoDB Server version 8.2.0.

Frequently asked questions

What is CVE-2025-11979?: An authorized user may crash the MongoDB server by causing buffer over-read. This can be done by issuing a DDL operation while queries are being issued, under some conditions. This issue affects MongoDB Server v7.0 versions prior to 7.0.25, MongoDB Server v8.0 versions prior to 8.0.15, and MongoDB Server version 8.2.0.
How severe is CVE-2025-11979?: CVE-2025-11979 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-11979 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-11979?: CVE-2025-11979 affects Mongodb. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-11979?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-11979 have an EU (EUVD) identifier?: Yes. CVE-2025-11979 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-35086.
When was CVE-2025-11979 published?: CVE-2025-11979 was published on 2025-10-20 and last updated on 2026-06-17.

References

https://jira.mongodb.org/browse/SERVER-105873

Affected products (1)

cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*

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Other CWE-416 (Use After Free) vulnerabilities

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CVE-2026-4688 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox…
CVE-2025-24085 — Critical (CVSS 10.0): A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.3 and iPadOS 18.3,…
CVE-2024-43102 — Critical (CVSS 10.0): Concurrent removals of certain anonymous shared memory mappings by using the UMTX_SHM_DESTROY sub-request of…
CVE-2021-32495 — Critical (CVSS 10.0): Radare2 has a use-after-free vulnerability in pyc parser's get_none_object function. Attacker can read freed memory…

Browse all CWE-416 (Use After Free) vulnerabilities →

Threat intelligence

Threat-intel indicators referencing this CVE:

1.234.27.159 (ipv4-addr)
167.71.60.5 (ipv4-addr)