How severe is CVE-2001-0858?

CVE-2001-0858 has a CVSS 2.0 base score of 4.6, rated medium severity.

Is CVE-2001-0858 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-0858?

CVE-2001-0858 primarily affects Caldera Unixware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2001-0858?

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

When was CVE-2001-0858 published?

CVE-2001-0858 was published on 2001-12-06 and last updated on 2026-06-16.

CVE-2001-0858

CVE-2001-0858 is a medium-severity vulnerability in Caldera Unixware with a CVSS 2.0 base score of 4.6. 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 4.6)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Caldera Unixware
Published: 2001-12-06
Last modified: 2026-06-16

Description

Buffer overflow in pppattach and other linked PPP utilities in Caldera Open Unix 8.0 and UnixWare 7.1.0 and 7.1.1 allows local users to gain privileges.

Frequently asked questions

What is CVE-2001-0858?: Buffer overflow in pppattach and other linked PPP utilities in Caldera Open Unix 8.0 and UnixWare 7.1.0 and 7.1.1 allows local users to gain privileges.
How severe is CVE-2001-0858?: CVE-2001-0858 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-2001-0858 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-0858?: CVE-2001-0858 primarily affects Caldera Unixware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2001-0858?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2001-0858 published?: CVE-2001-0858 was published on 2001-12-06 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:caldera:unixware:7.1.0:*:*:*:*:*:*:*
cpe:2.3:a:caldera:unixware:7.1.1:*:*:*:*:*:*:*
cpe:2.3:o:caldera:openunix:8.0:*:*:*:*:*:*:*

More vulnerabilities in Caldera Unixware

CVE-2002-0988 — Critical (CVSS 10.0): Buffer overflow in X server (Xsco) in OpenUNIX 8.0.0 and UnixWare 7.1.1, possibly related to XBM/xkbcomp capabilities.
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CVE-2002-0311 — Critical (CVSS 10.0): Vulnerability in webtop in UnixWare 7.1.1 and Open UNIX 8.0.0 allows local and possibly remote attackers to gain root…
CVE-2002-0885 — High (CVSS 7.5): Multiple buffer overflows in in.rarpd (ARP server) on Solaris, and possibly other operating systems including Caldera…
CVE-2002-0884 — High (CVSS 7.5): Multiple format string vulnerabilities in in.rarpd (ARP server) on Solaris, Caldera UnixWare and Open UNIX, and…
CVE-2002-0677 — High (CVSS 7.5): CDE ToolTalk database server (ttdbserver) allows remote attackers to overwrite arbitrary memory locations with a zero,…

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