How severe is CVE-2005-2019?

CVE-2005-2019 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2005-2019 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2005-2019?

CVE-2005-2019 affects Freebsd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2005-2019?

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

When was CVE-2005-2019 published?

CVE-2005-2019 was published on 2005-07-05 and last updated on 2026-06-16.

CVE-2005-2019

CVE-2005-2019 is a medium-severity vulnerability in Freebsd with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Freebsd
Published: 2005-07-05
Last modified: 2026-06-16

Description

ipfw in FreeBSD 5.4, when running on Symmetric Multi-Processor (SMP) or Uni Processor (UP) systems with the PREEMPTION kernel option enabled, does not sufficiently lock certain resources while performing table lookups, which can cause the cache results to be corrupted during multiple concurrent lookups, allowing remote attackers to bypass intended access restrictions.

Frequently asked questions

What is CVE-2005-2019?: ipfw in FreeBSD 5.4, when running on Symmetric Multi-Processor (SMP) or Uni Processor (UP) systems with the PREEMPTION kernel option enabled, does not sufficiently lock certain resources while performing table lookups, which can cause the cache results to be corrupted during multiple concurrent lookups, allowing remote attackers to bypass intended access restrictions.
How severe is CVE-2005-2019?: CVE-2005-2019 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2005-2019 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2005-2019?: CVE-2005-2019 affects Freebsd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2005-2019?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2005-2019 published?: CVE-2005-2019 was published on 2005-07-05 and last updated on 2026-06-16.

References

ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-05:13.ipfw.asc

Affected products (1)

cpe:2.3:o:freebsd:freebsd:5.4:*:*:*:*:*:*:*

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