What’s Vulnerable › Vulnerabilities

CVE-2017-7777

• Severity: high (CVSS 8.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-04-15 · updated 2026-06-17
• Weakness: CWE-119

Description

Use of uninitialized memory in Graphite2 library in Firefox before 54 in graphite2::GlyphCache::Loader::read_glyph function.

Affected products

• Mozilla Firefox: before 54.0 — fixed in 54.0
• Sil Graphite2: before 1.3.10 — fixed in 1.3.10

How to fix

Upgrade to a fixed version: Mozilla Firefox 54.0; Sil Graphite2 1.3.10. Check the vendor advisory for mitigations.

References

• https://www.mozilla.org/en-US/security/advisories/mfsa2017-15/
• https://www.mozilla.org/en-US/security/advisories/mfsa2017-15/

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