How severe is CVE-2010-4210?

CVE-2010-4210 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2010-4210 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-4210?

CVE-2010-4210 primarily affects Freebsd. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-4210?

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.

When was CVE-2010-4210 published?

CVE-2010-4210 was published on 2010-11-22 and last updated on 2026-06-16.

CVE-2010-4210

CVE-2010-4210 is a high-severity vulnerability in Freebsd with a CVSS 3.x base score of 7.8. 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-667.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-667
Affected product: Freebsd
Published: 2010-11-22
Last modified: 2026-06-16

Description

The pfs_getextattr function in FreeBSD 7.x before 7.3-RELEASE and 8.x before 8.0-RC1 unlocks a mutex that was not previously locked, which allows local users to cause a denial of service (kernel panic), overwrite arbitrary memory locations, and possibly execute arbitrary code via vectors related to opening a file on a file system that uses pseudofs.

Frequently asked questions

What is CVE-2010-4210?: The pfs_getextattr function in FreeBSD 7.x before 7.3-RELEASE and 8.x before 8.0-RC1 unlocks a mutex that was not previously locked, which allows local users to cause a denial of service (kernel panic), overwrite arbitrary memory locations, and possibly execute arbitrary code via vectors related to opening a file on a file system that uses pseudofs.
How severe is CVE-2010-4210?: CVE-2010-4210 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2010-4210 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-4210?: CVE-2010-4210 primarily affects Freebsd. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-4210?: 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.
When was CVE-2010-4210 published?: CVE-2010-4210 was published on 2010-11-22 and last updated on 2026-06-16.

References

Affected products (7)

cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:8.0:p1:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:8.0:p2:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:8.0:p3:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:8.0:p4:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:8.0:p5:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:8.0:p6:*:*:*:*:*:*

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