CVE-2017-5436
CVSS v3
8.8
HIGH
EPSS Score
2.4 %
exploit probability, as of 2026-10-16
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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Affected and fixed versions
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
Mozilla: graphite2: Out-of-bounds write with malicious font in Graphite 2 (MFSA 2017-11, MFSA 2017-12)
firefox.src as a component of Red Hat Enterprise Linux 5 · thunderbird.src as a component of Red Hat Enterprise Linux 5
Description
An out-of-bounds write in the Graphite 2 library triggered with a maliciously crafted Graphite font. This results in a potentially exploitable crash. This issue was fixed in the Graphite 2 library as well as Mozilla products. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Published
- 2017-04-19
- Last Modified
- 2026-10-16
Frequently asked questions
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