CVE-2017-17521

high
Published 2017-12-14 · Modified 2026-05-13
CVSS v3
8.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v2
6.8
VIR risk
8.8

Description

uiutil.c in FontForge through 20170731 does not validate strings before launching the program specified by the BROWSER environment variable, which might allow remote attackers to conduct argument-injection attacks via a crafted URL, a different vulnerability than CVE-2017-17534.

Predictions

Exploit likelihood
92%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2017-17521

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2017-17521.html

OS impact

OSVersionStatusFixed in
suse slesaffected
debian debianbookwormaffected
debian debianbullseyeaffected
debian debianforkyaffected
debian debiansidaffected
debian debiantrixieaffected

Application impact

VendorProductVersionsFixed
fontforgefontforge{"endIncluding":"20170731"}

References

CWEs

CWE-74

Verify integrity in audit chain (admin only). AS-IS.