How severe is CVE-1999-1139?

CVE-1999-1139 has a CVSS 2.0 base score of 7.2, rated high severity.

Is CVE-1999-1139 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-1139?

CVE-1999-1139 affects Hp Hp-ux. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-1999-1139?

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-1999-1139 published?

CVE-1999-1139 was published on 1997-09-01 and last updated on 2026-06-16.

CVE-1999-1139

CVE-1999-1139 is a high-severity vulnerability in Hp Hp-ux with a CVSS 2.0 base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.2)
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Hp Hp-ux
Published: 1997-09-01
Last modified: 2026-06-16

Description

Character-Terminal User Environment (CUE) in HP-UX 11.0 and earlier allows local users to overwrite arbitrary files and gain root privileges via a symlink attack on the IOERROR.mytty file.

Frequently asked questions

What is CVE-1999-1139?: Character-Terminal User Environment (CUE) in HP-UX 11.0 and earlier allows local users to overwrite arbitrary files and gain root privileges via a symlink attack on the IOERROR.mytty file.
How severe is CVE-1999-1139?: CVE-1999-1139 has a CVSS 2.0 base score of 7.2, rated high severity.
Is CVE-1999-1139 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-1139?: CVE-1999-1139 affects Hp Hp-ux. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-1139?: 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-1999-1139 published?: CVE-1999-1139 was published on 1997-09-01 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:hp:hp-ux:*:*:*:*:*:*:*:*

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