How severe is CVE-2005-0637?

CVE-2005-0637 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2005-0637 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-2005-0637?

CVE-2005-0637 primarily affects Openbsd. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2005-0637?

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

When was CVE-2005-0637 published?

CVE-2005-0637 was published on 2005-05-02 and last updated on 2026-06-16.

CVE-2005-0637

CVE-2005-0637 is a medium-severity vulnerability in Openbsd 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% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Openbsd
Published: 2005-05-02
Last modified: 2026-06-16

Description

The copy functions in locore.s such as copyout in OpenBSD 3.5 and 3.6, and possibly other BSD based operating systems, may allow attackers to exceed certain address boundaries and modify kernel memory.

Frequently asked questions

What is CVE-2005-0637?: The copy functions in locore.s such as copyout in OpenBSD 3.5 and 3.6, and possibly other BSD based operating systems, may allow attackers to exceed certain address boundaries and modify kernel memory.
How severe is CVE-2005-0637?: CVE-2005-0637 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2005-0637 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-2005-0637?: CVE-2005-0637 primarily affects Openbsd. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2005-0637?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2005-0637 published?: CVE-2005-0637 was published on 2005-05-02 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:o:openbsd:openbsd:3.5:*:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:3.6:*:*:*:*:*:*:*

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