5.3

CVE-2017-5426: mozilla firefox

CVSS: 5.3v3.0MediumModified
AliasesUBUNTU-CVE-2017-5426
Published 11-06-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2017-5426 is a medium (CVSS 5.3) vulnerability in mozilla firefox. EPSS estimates a 1.41% chance of exploitation in the next 30 days, higher than 72.1% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.0 (NVD)
EPSS score
1.41%
0%100%
Low · -0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 6 · Related 5
MGASA-2018-0018OPENSUSE-SU-2017:1268-1OPENSUSE-SU-2024:10600-1OPENSUSE-SU-2024:10601-1OPENSUSE-SU-2024:14572-1USN-3216-1

Timeline

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

Description

On Linux, if the secure computing mode BPF (seccomp-bpf) filter is running when the Gecko Media Plugin sandbox is started, the sandbox fails to be applied and items that would run within the sandbox are run protected only by the running filter which is typically weak compared to the sandbox. Note: this issue only affects Linux. Other operating systems are not affected. This vulnerability affects Firefox < 52 and Thunderbird < 52.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.41%

Chance of exploitation in the next 30 days

Percentile

72%

Versus all other CVEs

30-day change

-0.03 pp

From 1.44% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.41%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Mozilla2 products
Ubuntu1 product
  • firefox< 52.0+build2-0ubuntu0.14.04.1 | < 52.0+build2-0ubuntu0.16.04.1

2 vendors · 3 products

References

9 links