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HIGH

CVE-2017-7777

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?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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