CVE-1999-1091

CVE-1999-1091 is a medium-severity vulnerability in Rtin with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

UNIX news readers tin and rtin create the /tmp/.tin_log file with insecure permissions and follow symlinks, which allows attackers to modify the permissions of files writable by the user via a symlink attack.

Frequently asked questions

What is CVE-1999-1091?
UNIX news readers tin and rtin create the /tmp/.tin_log file with insecure permissions and follow symlinks, which allows attackers to modify the permissions of files writable by the user via a symlink attack.
How severe is CVE-1999-1091?
CVE-1999-1091 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-1999-1091 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-1999-1091?
CVE-1999-1091 primarily affects Rtin. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-1999-1091?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-1999-1091 published?
CVE-1999-1091 was published on 2002-01-15 and last updated on 2026-06-16.

References

Affected products (2)