9.8

CVE-2017-5456: mozilla firefox

CVSS: 9.8v3.0CriticalModified
AliasesUBUNTU-CVE-2017-5456
Published 11-06-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2017-5456 is a critical (CVSS 9.8) vulnerability in mozilla firefox. EPSS estimates a 2.73% chance of exploitation in the next 30 days, higher than 85.8% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.0 (NVD)
EPSS score
2.73%
0%100%
Low · -0.06 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 7 · Related 5
MGASA-2018-0018OPENSUSE-SU-2024:10600-1OPENSUSE-SU-2024:14572-1RHSA-2017:1106SUSE-SU-2017:1669-1SUSE-SU-2017:2235-1

Timeline

  1. 11-06-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

A mechanism to bypass file system access protections in the sandbox using the file system request constructor through an IPC message. This allows for read and write access to the local file system. This vulnerability affects Firefox ESR < 52.1 and Firefox < 53.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

2.73%

Chance of exploitation in the next 30 days

Percentile

86%

Versus all other CVEs

30-day change

-0.06 pp

From 2.78% on 18-09-2026

18-09-202618-10-2026
EPSS score
2.73%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (bugzilla.mozilla.org)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Redhat6 products
Mozilla2 products
Ubuntu1 product
  • firefox< 53.0+build6-0ubuntu0.14.04.1 | < 53.0+build6-0ubuntu0.16.04.1

3 vendors · 9 products

References

10 links