CVE-1999-0022

CVE-1999-0022 is a high-severity vulnerability in Sgi Irix with a CVSS 3.x base score of 7.8. 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-125.

Key facts

• Severity: High (CVSS 3.x base score 7.8)
• CVSS v2: 7.2
• EPSS exploit prediction: 0% (39th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-125
• Affected product: Sgi Irix
• Published: 1996-07-03
• Last modified: 2026-06-16

Description

Local user gains root privileges via buffer overflow in rdist, via expstr() function.

Frequently asked questions

What is CVE-1999-0022?

Local user gains root privileges via buffer overflow in rdist, via expstr() function.

How severe is CVE-1999-0022?

CVE-1999-0022 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-1999-0022 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-1999-0022?

CVE-1999-0022 primarily affects Sgi Irix. In total, 39 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-1999-0022?

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-1999-0022 published?

CVE-1999-0022 was published on 1996-07-03 and last updated on 2026-06-16.

References

• http://sunsolve.sun.com/pub-cgi/retrieve.pl?doctype=coll&doc=secbull/179

Affected products (39)

• cpe:2.3:o:sgi:irix:5.0:*:*:*:*:*:*:*
• cpe:2.3:o:sgi:irix:5.0.1:*:*:*:*:*:*:*
• cpe:2.3:o:sgi:irix:5.1:*:*:*:*:*:*:*
• cpe:2.3:o:sgi:irix:5.1.1:*:*:*:*:*:*:*
• cpe:2.3:o:sgi:irix:5.2:*:*:*:*:*:*:*
• cpe:2.3:o:sgi:irix:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:sgi:irix:5.3:*:xfs:*:*:*:*:*
• cpe:2.3:o:sgi:irix:6.0:*:*:*:*:*:*:*
• cpe:2.3:o:sgi:irix:6.0.1:*:*:*:*:*:*:*
• cpe:2.3:o:sgi:irix:6.0.1:*:xfs:*:*:*:*:*
• cpe:2.3:o:sgi:irix:6.1:*:*:*:*:*:*:*
• cpe:2.3:o:sgi:irix:6.2:*:*:*:*:*:*:*
• cpe:2.3:o:sgi:irix:6.3:*:*:*:*:*:*:*
• cpe:2.3:o:sgi:irix:6.4:*:*:*:*:*:*:*
• cpe:2.3:o:bsdi:bsd_os:1.1:*:*:*:*:*:*:*
• cpe:2.3:o:freebsd:freebsd:2.0:*:*:*:*:*:*:*
• cpe:2.3:o:freebsd:freebsd:2.0.5:*:*:*:*:*:*:*
• cpe:2.3:o:freebsd:freebsd:2.1.0:*:*:*:*:*:*:*
• cpe:2.3:o:hp:hp-ux:10.00:*:*:*:*:*:*:*
• cpe:2.3:o:ibm:aix:3.1:*:*:*:*:*:*:*
• cpe:2.3:o:ibm:aix:3.2:*:*:*:*:*:*:*
• cpe:2.3:o:ibm:aix:3.2.4:*:*:*:*:*:*:*
• cpe:2.3:o:ibm:aix:3.2.5:*:*:*:*:*:*:*
• cpe:2.3:o:ibm:aix:4.1:*:*:*:*:*:*:*
• cpe:2.3:o:ibm:aix:4.1.1:*:*:*:*:*:*:*
• cpe:2.3:o:ibm:aix:4.1.2:*:*:*:*:*:*:*
• cpe:2.3:o:ibm:aix:4.1.3:*:*:*:*:*:*:*
• cpe:2.3:o:ibm:aix:4.1.4:*:*:*:*:*:*:*
• cpe:2.3:o:ibm:aix:4.1.5:*:*:*:*:*:*:*
• cpe:2.3:o:ibm:aix:4.2:*:*:*:*:*:*:*
• cpe:2.3:o:sun:solaris:4.1.3:*:*:*:*:*:*:*
• cpe:2.3:o:sun:sunos:4.1.1:*:*:*:*:*:*:*
• cpe:2.3:o:sun:sunos:4.1.2:*:*:*:*:*:*:*
• cpe:2.3:o:sun:sunos:4.1.3u1:*:*:*:*:*:*:*
• cpe:2.3:o:sun:sunos:5.0:*:*:*:*:*:*:*
• cpe:2.3:o:sun:sunos:5.1:*:*:*:*:*:*:*
• cpe:2.3:o:sun:sunos:5.2:*:*:*:*:*:*:*
• cpe:2.3:o:sun:sunos:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:sun:sunos:5.4:*:*:*:*:*:*:*

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