How severe is CVE-2009-1427?

CVE-2009-1427 has a CVSS 2.0 base score of 4.9, rated medium severity.

Is CVE-2009-1427 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-1427?

CVE-2009-1427 affects Hp Hpux. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-1427?

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

When was CVE-2009-1427 published?

CVE-2009-1427 was published on 2009-08-12 and last updated on 2026-06-16.

CVE-2009-1427

CVE-2009-1427 is a medium-severity vulnerability in Hp Hpux with a CVSS 2.0 base score of 4.9. 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 4.9)
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Hp Hpux
Published: 2009-08-12
Last modified: 2026-06-16

Description

Unspecified vulnerability in HP-UX B.11.31 allows local users to cause a denial of service (system crash) via unknown vectors related to the ttrace system call.

Frequently asked questions

What is CVE-2009-1427?: Unspecified vulnerability in HP-UX B.11.31 allows local users to cause a denial of service (system crash) via unknown vectors related to the ttrace system call.
How severe is CVE-2009-1427?: CVE-2009-1427 has a CVSS 2.0 base score of 4.9, rated medium severity.
Is CVE-2009-1427 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-1427?: CVE-2009-1427 affects Hp Hpux. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-1427?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-1427 published?: CVE-2009-1427 was published on 2009-08-12 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:hp:hpux:b.11.31:*:*:*:*:*:*:*

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