VulnerabilityModified
CVE-2017-7776
Heap-based Buffer Overflow read in Graphite2 library in Firefox before 54 in graphite2::Silf::getClassGlyph.
HIGH 8.1EPSS 2.77%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.77%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Heap-based Buffer Overflow read in Graphite2 library in Firefox before 54 in graphite2::Silf::getClassGlyph.
- CVSS 3.0
- 8.1 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
- EPSS
- 2.77% probability · 86th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- mozilla/firefox · sil/graphite2
- Source
- security@mozilla.org
EPSS moved from 1.2% on 21 September 2026 to 2.8% on 27 October 2026.
References
- https://www.mozilla.org/en-US/security/advisories/mfsa2017-15/Exploit, Vendor Advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2017-15/Exploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.