CVE-2023-6868

In some instances, the user-agent would allow push requests which lacked a valid VAPID even...

4.3 Medium

In some instances, the user-agent would allow push requests which lacked a valid VAPID even though the push manager subscription defined one. This could allow empty messages to be sent from unauthorized parties. This bug only affects Firefox on Android. This vulnerability affects Firefox < 121.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: None
Integrity: Low
Availability: None

Exploit likelihood

0.49%Up 0.5 points since Dec 20, 2023

What each source reports

NVD Score used 4.3

Record: CVE-2023-6868
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Updated: 2026-11-02

CVE List No score

Record: CVE-2023-6868
Updated: 2026-11-02

EUVDEUVD-2023-59072 No score

Record: EUVD-2023-59072
Updated: 2026-11-03

GitHub AdvisoriesGHSA-3xch-57qj-5x2p 4.3

In some instances, the user-agent would allow push requests which lacked a valid VAPID even...

Record: GHSA-3xch-57qj-5x2p
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Updated: 2026-11-02

OSVUBUNTU-CVE-2023-6868 4.3

Record: UBUNTU-CVE-2023-6868
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Updated: 2026-11-02

OSVopenSUSE-SU-2024:13531-1 No score

MozillaFirefox-121.0-1.1 on GA media

These are all security issues fixed in the MozillaFirefox-121.0-1.1 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2024:13531-1
Updated: 2026-11-02

OSVopenSUSE-SU-2024:14572-1 No score

firefox-esr-128.5.1-1.1 on GA media

These are all security issues fixed in the firefox-esr-128.5.1-1.1 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2024:14572-1
Updated: 2026-11-02

Affected products

mozilla firefox

Affected packages

Affected packages
Package	Affected	Fixed
`mozjs52` Ubuntu:18.04:LTS	All versions, plus listed versions 52.3.1-0ubuntu352.3.1-7fakesync152.8.1-0ubuntu0.18.04.152.9.1-0ubuntu0.18.04.1	None known
`mozjs38` Ubuntu:18.04:LTS	All versions, plus listed versions 38.8.0~repack1-0ubuntu138.8.0~repack1-0ubuntu338.8.0~repack1-0ubuntu4	None known
`mozjs68` Ubuntu:20.04:LTS	All versions, plus listed versions 68.5.0-1~fakesync68.5.0-2~fakesync68.6.0-168.6.0-1ubuntu1	None known
`mozjs52` Ubuntu:20.04:LTS	All versions, plus listed versions 52.9.1-1build152.9.1-1ubuntu3	None known
`mozjs102` Ubuntu:22.04:LTS	All versions, plus listed versions 102.11.0-0ubuntu0.22.04.1102.12.0-0ubuntu0.22.04.1102.13.0-0ubuntu0.22.04.1102.15.1-0ubuntu0.22.04.1	None known
`mozjs78` Ubuntu:22.04:LTS	All versions, plus listed versions 78.13.0-178.15.0-278.15.0-4ubuntu1	None known
`mozjs91` Ubuntu:22.04:LTS	All versions, plus listed versions 91.5.1-0ubuntu191.6.0-191.6.0-291.7.0-291.10.0-0ubuntu1	None known
`mozjs102` Ubuntu:24.04:LTS	All versions, plus listed versions 102.15.1-1102.15.1-3ubuntu2	None known
`MozillaFirefox` openSUSE:Tumbleweed From an advisory covering 18 CVEs	before 121.0-1.1	121.0-1.1
`firefox-esr` openSUSE:Tumbleweed From an advisory covering 1860 CVEs	before 128.5.1-1.1	128.5.1-1.1

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases, published	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-6868 is a medium vulnerability (CVSS 4.3) in Mozilla Firefox, published December 19, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.49%, the 42nd percentile. No source names a fixed version.

References

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