CVSS v3
8.8
HIGH
EPSS Score
1.2 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Use of uninitialized memory in Graphite2 library in Firefox before 54 in graphite2::GlyphCache::Loader::read_glyph function.
Technical details
- Published
- 2019-04-15
Frequently asked questions
What is CVE-2017-7777?
Use of uninitialized memory in Graphite2 library in Firefox before 54 in graphite2::GlyphCache::Loader::read_glyph function.
Is CVE-2017-7777 actively exploited?
Active exploitation of CVE-2017-7777 has not been confirmed. Its EPSS score was 1.2% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2017-7777?
CVE-2017-7777 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2017-7777 affecting your environment?
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