fontforge: Command injetion in help function uiutil.c
Published Dec 14, 2017
8.8
HIGHCVSS 3.0
EPSS 1.83%
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.
Affected products
No data.
No data.
Red Hat Enterprise Linux 6
fontforge
Will not fix
Red Hat Enterprise Linux 7
fontforge
Will not fix
Red Hat Enterprise Linux 8
fontforge
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | fontforge | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | fontforge | Will not fix | n/a |
| Red Hat Enterprise Linux 8 | fontforge | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue affects the versions of fontforge as shipped with Red Hat Enterprise Linux 6 and Red Hat Enterprise Linux 7. Red Hat Product Security has rated this issue as having Moderate security impact. A future update may address this issue. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
AV:N/AC:M/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.83% (0.01834) | 78.14th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.83% (0.01834) | 76.06th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.20% (0.00202) | 58.64th | v3 (v2023.03.01) |
| Jun 14, 2024 | 0.20% (0.00202) | 58.40th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.20% (0.00202) | 56.36th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.05% (0.01055) | 50.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.05% (0.01055) | 27.52th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.56% (0.00556) | 13.12th | v1 |
| Jan 6, 2022 | 0.56% (0.00556) | 12.63th | v1 |
| Sep 1, 2021 | 0.56% (0.00556) | 33.69th | v1 |
| Apr 14, 2021 | 0.56% (0.00556) | 0.00th | v1 |
References (5)
- https://access.redhat.com/security/cve/CVE-2017-17521 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1526142 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2017-17521
- https://security-tracker.debian.org/tracker/CVE-2017-17521 x_refsource_MISCIssue TrackingThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2017-17521
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2017-17521 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1526142 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-17521 | ||
| https://security-tracker.debian.org/tracker/CVE-2017-17521 | x_refsource_MISCIssue TrackingThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2017-17521 |
Change history (0)
No recorded changes yet.