6.5

CVE-2018-18495: canonical ubuntu_linux

CVSS: 6.5v3.0MediumModified
AliasesUBUNTU-CVE-2018-18495
Published 28-02-2019Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-18495 is a medium (CVSS 6.5) vulnerability in canonical ubuntu_linux. EPSS estimates a 1.93% chance of exploitation in the next 30 days, higher than 79.6% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.0 (NVD)
EPSS score
1.93%
0%100%
Low · +0.27 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3 · Related 3
OPENSUSE-SU-2024:10600-1OPENSUSE-SU-2024:14572-1USN-3844-1

Timeline

  1. 28-02-2019
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

WebExtension content scripts can be loaded into about: pages in some circumstances, in violation of the permissions granted to extensions. This could allow an extension to interfere with the loading and usage of these pages and use capabilities that were intended to be restricted from extensions. This vulnerability affects Firefox < 64.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.93%

Chance of exploitation in the next 30 days

Percentile

80%

Versus all other CVEs

30-day change

+0.27 pp

From 1.67% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.93%

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

Canonical1 product
Mozilla1 product
  • firefox≥ unspecified, < 64 | < 64.0
Ubuntu1 product
  • firefox< 64.0+build3-0ubuntu0.14.04.1 | < 64.0+build3-0ubuntu0.16.04.1 | < 64.0+build3-0ubuntu0.18.04.1

3 vendors · 3 products

References

8 links