How severe is CVE-2009-2649?

CVE-2009-2649 has a CVSS 2.0 base score of 4.7, rated medium severity.

Is CVE-2009-2649 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-2649?

CVE-2009-2649 primarily affects Freebsd. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-2649?

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

When was CVE-2009-2649 published?

CVE-2009-2649 was published on 2009-07-30 and last updated on 2026-06-16.

CVE-2009-2649

CVE-2009-2649 is a medium-severity vulnerability in Freebsd with a CVSS 2.0 base score of 4.7. 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-264.

Key facts

Severity: Medium (CVSS 2.0 base score 4.7)
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Freebsd
Published: 2009-07-30
Last modified: 2026-06-16

Description

The IATA (ata) driver in FreeBSD 6.0 and 8.0, when read access to /dev is available, allows local users to cause a denial of service (kernel panic) via a certain IOCTL request with a large count, which triggers a malloc call with a large value.

Frequently asked questions

What is CVE-2009-2649?: The IATA (ata) driver in FreeBSD 6.0 and 8.0, when read access to /dev is available, allows local users to cause a denial of service (kernel panic) via a certain IOCTL request with a large count, which triggers a malloc call with a large value.
How severe is CVE-2009-2649?: CVE-2009-2649 has a CVSS 2.0 base score of 4.7, rated medium severity.
Is CVE-2009-2649 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-2649?: CVE-2009-2649 primarily affects Freebsd. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-2649?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-2649 published?: CVE-2009-2649 was published on 2009-07-30 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:o:freebsd:freebsd:6.0:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:8.0:*:*:*:*:*:*:*

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