6.5

CVE-2019-11748: mozilla firefox Improper Preservation of Permissions

CVSS: 6.5v3.1MediumModified
AliasesUBUNTU-CVE-2019-11748DEBIAN-CVE-2019-11748
Published 27-09-2019Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2019-11748 is a medium (CVSS 6.5) Improper Preservation of Permissions vulnerability in mozilla firefox. EPSS estimates a 1.03% chance of exploitation in the next 30 days, higher than 63.1% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
1.03%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 10 · Related 8
MGASA-2019-0268OPENSUSE-SU-2019:2251-1OPENSUSE-SU-2019:2260-1OPENSUSE-SU-2024:10600-1OPENSUSE-SU-2024:14572-1RHSA-2019:2663

Timeline

  1. 27-09-2019
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

WebRTC in Firefox will honor persisted permissions given to sites for access to microphone and camera resources even when in a third-party context. In light of recent high profile vulnerabilities in other software, a decision was made to no longer persist these permissions. This avoids the possibility of trusted WebRTC resources being invisibly embedded in web content and abusing permissions previously given by users. Users will now be prompted for permissions on each use. This vulnerability affects Firefox < 69 and Firefox ESR < 68.1.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.03%

Chance of exploitation in the next 30 days

Percentile

63%

Versus all other CVEs

30-day change

0.00 pp

From 1.03% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.03%

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

Ubuntu3 products
  • firefox< 69.0+build2-0ubuntu0.16.04.4 | < 69.0+build2-0ubuntu0.18.04.1
  • mozjs38All versions (No fix recorded)
  • mozjs52All versions (No fix recorded)
Mozilla2 products
Debian1 product
  • firefox-esr< 68.1.0esr-1

3 vendors · 6 products

References

10 links