USN-4893-1: firefox Ubuntu

CVSS: UnknownPublished
Published 25-03-2021Last modified 22-04-2026

Vulnerability summary

USN-4893-1 is a vulnerability in firefox Ubuntu with no CVSS score yet.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
Not scored
0%100%
No EPSS score yet
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 8 · Downstream 0 · Related 8

Timeline

  1. 25-03-2021
    PublishedVulnerability first disclosed.
  2. 22-04-2026
    Last modifiedVulnerability information updated.

Description

firefox vulnerabilities Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, or execute arbitrary code. (CVE-2021-23981, CVE-2021-23982, CVE-2021-23983, CVE-2021-23987, CVE-2021-23988) It was discovered that extensions could open popup windows with control of the window title in some circumstances. If a user were tricked into installing a specially crafted extension, an attacker could potentially exploit this to spook a website and trick the user into providing credentials. (CVE-2021-23984) It was discovered that the DevTools remote debugging feature could be enabled without an indication to the user. If a local attacker could modify the browser configuration, a remote attacker could potentially exploit this to obtain sensitive information. (CVE-2021-23985) It was discovered that extensions could read the response of cross origin requests in some circumstances. If a user were tricked into installing a specially crafted extension, an attacker could potentially exploit this to obtain sensitive information. (CVE-2021-23986)

CVSS metrics

Risk metrics not yet published.

EPSS trend

No EPSS score has been published for this record yet.

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

No weakness data has been published for this record.

Affected systems

Ubuntu1 product
  • firefox< 87.0+build3-0ubuntu0.16.04.2 | < 87.0+build3-0ubuntu0.18.04.2 | < 87.0+build3-0ubuntu0.20.04.2

1 vendor · 1 product

References

9 links