How severe is CVE-2001-1577?

CVE-2001-1577 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2001-1577 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-1577?

CVE-2001-1577 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-2001-1577?

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-2001-1577 published?

CVE-2001-1577 was published on 2001-12-31 and last updated on 2026-06-16.

CVE-2001-1577

CVE-2001-1577 is a high-severity vulnerability in Caldera Unixware with a CVSS 2.0 base score of 7.5. 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 7.5)
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Caldera Unixware
Published: 2001-12-31
Last modified: 2026-06-16

Description

Unknown vulnerability in CDE in Caldera OpenUnix 7.1.0, 7.1.1, and 8.0 allows an xterm session to gain privileges when the session is reused.

Frequently asked questions

What is CVE-2001-1577?: Unknown vulnerability in CDE in Caldera OpenUnix 7.1.0, 7.1.1, and 8.0 allows an xterm session to gain privileges when the session is reused.
How severe is CVE-2001-1577?: CVE-2001-1577 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2001-1577 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-1577?: CVE-2001-1577 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-2001-1577?: 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-2001-1577 published?: CVE-2001-1577 was published on 2001-12-31 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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