8.1

CVE-2017-7776: mozilla firefox Out-of-bounds Read

CVSS: 8.1v3.0HighModified
AliasesUBUNTU-CVE-2017-7776DEBIAN-CVE-2017-7776
Published 12-04-2019Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2017-7776 is a high (CVSS 8.1) Out-of-bounds Read vulnerability in mozilla firefox. EPSS estimates a 2.77% chance of exploitation in the next 30 days, higher than 86% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
43/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.1/10
010
High · v3.0 (NVD)
EPSS score
2.77%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 15 · Related 4
DLA-1007-1DLA-1013-1DLA-991-1DSA-3881-1DSA-3894-1DSA-3918-1

Timeline

  1. 12-04-2019
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

Heap-based Buffer Overflow read in Graphite2 library in Firefox before 54 in graphite2::Silf::getClassGlyph.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

2.77%

Chance of exploitation in the next 30 days

Percentile

86%

Versus all other CVEs

30-day change

0.00 pp

From 2.77% on 18-09-2026

18-09-202618-10-2026
EPSS score
2.77%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (mozilla.org)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Ubuntu3 products
  • firefox< 54.0+build3-0ubuntu0.14.04.1 | < 54.0+build3-0ubuntu0.16.04.1
  • graphite2< 1.3.10-0ubuntu0.14.04.1 | < 1.3.10-0ubuntu0.16.04.1
  • thunderbird< 1:52.2.1+build1-0ubuntu0.14.04.1 | < 1:52.2.1+build1-0ubuntu0.16.04.1
Debian2 products
  • firefox-esr< 52.2.0esr-1
  • graphite2< 1.3.10-1
Mozilla1 product
  • firefoxAll versions prior to Firefox 54 | < 54.0
Sil1 product

4 vendors · 7 products

References

7 links