An issue was discovered in mgetty before 1.2.1.

published 2018-09-13 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-8542

cvss: 7.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 39%
public exploits: 0; none known

An issue was discovered in mgetty before 1.2.1. In contrib/scrts.c, a stack-based buffer overflow can be triggered via a command-line parameter.

Patch / fix

fixed in 1 distros 3

mgetty_project mgetty 1.2.1

debian suse opensuse

mgetty Debian 14, Debian 13, Debian 12 1.2.1-1

debian advisories DEBIAN-CVE-2018-16742

mgetty SLES for SAP 12 SP3, SLES 12 SP3, SLED 12 SP3 1.1.36-58.3.1
mgetty SLE Module for Basesystem 15 1.1.37-3.3.2
mgetty SLES for SAP 11 SP4, SLES 11 SP4 1.1.36-28.3.1

suse advisories SUSE-SU-2018:2979-1 SUSE-SU-2018:2894-1 SUSE-SU-2018:2850-1

mgetty openSUSE Tumbleweed 1.2.1-6.2

opensuse advisories openSUSE-SU-2024:11047-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-16742 updated 2026-11-07 cvss 2.9

mgetty: Stack-based buffer overflow in contrib/scrts.c triggered via command line parameter

Red Hat Enterprise Linux 5 mgetty Red Hat Enterprise Linux 6 mgetty, mgetty-voice, mgetty-sendfax, mgetty-viewfax Red Hat Enterprise Linux 7 mgetty, mgetty-voice, mgetty-sendfax, mgetty-viewfax
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.45% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

x41-dsec.de https://www.x41-dsec.de/lab/advisories/x41-2018-007-mgetty referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.0	7.8	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	4.6	AV:L/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

CWE-787 Out-of-bounds Write

References

x41-dsec.de /lab/advisories/x41-2018-007-mgetty
exploit, third-party-advisory

Sources

CVE List CVE-2018-16742
NVD CVE-2018-16742

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary