5.3

CVE-2018-5109: canonical ubuntu_linux Origin Validation Error

CVSS: 5.3v3.0MediumModified
AliasesUBUNTU-CVE-2018-5109
Published 11-06-2018Last modified 05-08-2024

Vulnerability summary

CVE-2018-5109 is a medium (CVSS 5.3) Origin Validation Error vulnerability in canonical ubuntu_linux. EPSS estimates a 0.60% chance of exploitation in the next 30 days, higher than 47.8% 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
0.60%
0%100%
Low · -0.01 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

Timeline

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

Description

An audio capture session can started under an incorrect origin from the site making the capture request. Users are still prompted to allow the request but the prompt can display the wrong origin, leading to user confusion about which site is making the request to capture an audio stream. This vulnerability affects Firefox < 58.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.60%

Chance of exploitation in the next 30 days

Percentile

48%

Versus all other CVEs

30-day change

-0.01 pp

From 0.62% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.60%

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, < 58 | ≤ 57.0.4
Ubuntu1 product
  • firefox< 58.0+build6-0ubuntu0.14.04.1 | < 58.0+build6-0ubuntu0.16.04.1 | < 59.0.1+build1-0ubuntu1

3 vendors · 3 products

References

9 links