Vulnerability in Linux Kernel

CVE-1999-1341

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.

Published 1999-10-22 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 4.6 (Medium). Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.004 (32.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: -0.000

Affected products

Linux Kernel

References

exchange.xforce.ibmcloud.com/vulnerabilities/7858 (VDB Entry, Third Party Advisory, vdb-entry)
marc.info/ (mailing-list, Mailing List, Third Party Advisory)