Is CVE-1999-1341 in the CISA KEV catalog?

No. CVE-1999-1341 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-1999-1341?

CVE-1999-1341 has a CVSS v2 base score of 4.6 (MEDIUM).

What is the EPSS score for CVE-1999-1341?

CVE-1999-1341 has an EPSS score of 0.41% (33th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-1999-1341?

Upgrade linux kernel to 2.3.18 or later.

CVE & CISA-KEV Catalog

CVE-1999-1341

MEDIUM

4.6

CVSS v2

NVD

Description

Linux kernel before 2.3.18 or 2.2.13pre15, with SLIP and PPP options, allows local unprivileged users to forge IP packets via the TIOCSETD option on tty devices.

How to fix

Remediation Available

linux kernelNVD

Affected:>= 2.3.0, < 2.3.18Fixed in:2.3.18CVE-1999-1341derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

0.41%probability of exploitation in 30 days

33rdpercentile

Low risk: more likely to be exploited than 33% of all known CVEs.

References

Third-Party Advisory2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.