How severe is CVE-1999-0893?

CVE-1999-0893 has a CVSS 2.0 base score of 2.1, rated low severity.

Is CVE-1999-0893 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-0893?

CVE-1999-0893 affects Sco Openserver. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-1999-0893?

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

When was CVE-1999-0893 published?

CVE-1999-0893 was published on 1999-10-11 and last updated on 2026-06-16.

CVE-1999-0893

CVE-1999-0893 is a low-severity vulnerability in Sco Openserver with a CVSS 2.0 base score of 2.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Low (CVSS 2.0 base score 2.1)
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Sco Openserver
Published: 1999-10-11
Last modified: 2026-06-16

Description

userOsa in SCO OpenServer allows local users to corrupt files via a symlink attack.

Frequently asked questions

What is CVE-1999-0893?: userOsa in SCO OpenServer allows local users to corrupt files via a symlink attack.
How severe is CVE-1999-0893?: CVE-1999-0893 has a CVSS 2.0 base score of 2.1, rated low severity.
Is CVE-1999-0893 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-0893?: CVE-1999-0893 affects Sco Openserver. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-0893?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-1999-0893 published?: CVE-1999-0893 was published on 1999-10-11 and last updated on 2026-06-16.

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0893

Affected products (1)

cpe:2.3:o:sco:openserver:5.0:*:*:*:*:*:*:*

More vulnerabilities in Sco Openserver

CVE-2005-3625 — Critical (CVSS 10.0): Xpdf, as used in products such as gpdf, kpdf, pdftohtml, poppler, teTeX, CUPS, libextractor, and others, allows…
CVE-2001-0797 — Critical (CVSS 10.0): Buffer overflow in login in various System V based operating systems allows remote attackers to execute arbitrary…
CVE-2000-0306 — Critical (CVSS 10.0): Buffer overflow in calserver in SCO OpenServer allows remote attackers to gain root access via a long message.
CVE-1999-0835 — Critical (CVSS 10.0): Denial of service in BIND named via malformed SIG records.
CVE-1999-0368 — Critical (CVSS 10.0): Buffer overflows in wuarchive ftpd (wu-ftpd) and ProFTPD lead to remote root access, a.k.a. palmetto.
CVE-1999-0798 — Critical (CVSS 10.0): Buffer overflow in bootpd on OpenBSD, FreeBSD, and Linux systems via a malformed header type.

All CVEs affecting Sco Openserver →