What is CVE-2017-17521?

CVE-2017-17521 is a high-severity vulnerability in Fontforge, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 8.8/10. Published 2017-12-14.

How severe is CVE-2017-17521?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Fontforge

CVE-2017-17521

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.

EPSS: 0.018 (76.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Fontforge
N/a — versions n/a

Weakness classification (CWE)

CWE-74 — Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2017-17521?: CVE-2017-17521 is a high-severity vulnerability in Fontforge, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 8.8/10. Published 2017-12-14.
How severe is CVE-2017-17521?: High severity. CVSS v3 base score is 8.8 out of 10.