CVE catalog

CVE-2020-6799

firefox-esr: CVE-2020-6799

Severity: High · CVSS 8.8CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: Feb 17, 2020, 7:47:56 AM UTC
Source: [NVD] · [CVE record]
EPSS: 1.53% · Oct 25, 2026

Command line arguments could have been injected during Firefox invocation as a shell handler for certain unsupported file types. This required Firefox to be configured as the default handler for a given file type and for a file downloaded to be opened in a third party application that insufficiently sanitized URL data. In that situation, clicking a link in the third party application could have been used to retrieve and execute files whose location was supplied through command line arguments. Note: This issue only affects Windows operating systems and when Firefox is configured as the default handler for non-default filetypes. Other operating systems are unaffected. This vulnerability affects Firefox < 73 and Firefox < ESR68.5.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	firefox-esr	sid	`153.5.1esr-1`	not affected
Debian	firefox-esr	forky	`153.5.1esr-1`	not affected
Debian	firefox-esr	trixie	`140.15.0esr-1~deb13u1`	not affected
Debian	firefox-esr	trixie-security	`153.5.1esr-1~deb13u1`	not affected
Debian	firefox-esr	bookworm	`140.12.0esr-1~deb12u1`	not affected
Debian	firefox-esr	bookworm-security	`153.5.1esr-1~deb12u1`	not affected

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	firefox-esr	source	sid	`Not affected`	unimportant	Not reported	Not reported
Debian	firefox-esr	source	forky	`Not affected`	unimportant	Not reported	Not reported
Debian	firefox-esr	source	trixie	`Not affected`	unimportant	Not reported	Not reported
Debian	firefox-esr	source	bookworm	`Not affected`	unimportant	Not reported	Not reported

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[firefox-esr]Unknown
Details (4)
- 140.12.0esr-1~deb12u1 · amd64 · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.12.0esr-1~deb12u1 · arm64 · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · amd64 · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · arm64 · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
[firefox-esr-l10n-ach]Unknown
Source package: [firefox-esr]
Details (4)
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
[firefox-esr-l10n-af]Unknown
Source package: [firefox-esr]
Details (4)
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
[firefox-esr-l10n-all]Unknown
Source package: [firefox-esr]
Details (4)
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
[firefox-esr-l10n-an]Unknown
Source package: [firefox-esr]
Details (4)
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
[firefox-esr-l10n-ar]Unknown
Source package: [firefox-esr]
Details (4)
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
[firefox-esr-l10n-ast]Unknown
Source package: [firefox-esr]
Details (4)
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
[firefox-esr-l10n-az]Unknown
Source package: [firefox-esr]
Details (4)
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
[firefox-esr-l10n-be]Unknown
Source package: [firefox-esr]
Details (4)
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
[firefox-esr-l10n-bg]Unknown
Source package: [firefox-esr]
Details (4)
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
[firefox-esr-l10n-bn]Unknown
Source package: [firefox-esr]
Details (4)
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
[firefox-esr-l10n-br]Unknown
Source package: [firefox-esr]
Details (4)
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
[firefox-esr-l10n-bs]Unknown
Source package: [firefox-esr]
Details (4)
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
[firefox-esr-l10n-ca]Unknown
Source package: [firefox-esr]
Details (4)
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
[firefox-esr-l10n-cak]Unknown
Source package: [firefox-esr]
Details (4)
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
[firefox-esr-l10n-ca-valencia]Unknown
Source package: [firefox-esr]
Details (4)
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
[firefox-esr-l10n-cs]Unknown
Source package: [firefox-esr]
Details (4)
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
[firefox-esr-l10n-cy]Unknown
Source package: [firefox-esr]
Details (4)
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
[firefox-esr-l10n-da]Unknown
Source package: [firefox-esr]
Details (4)
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
[firefox-esr-l10n-de]Unknown
Source package: [firefox-esr]
Details (4)
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.12.0esr-1~deb12u1 · all · bookworm
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm
- 140.14.0esr-1~deb12u1 · all · bookworm-security
  Not affected
  dsa · firefox-esr · debian · bookworm

Next results

Observed: Oct 23, 2026, 5:53:08 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [SUSE security advisories and VEX]