CVE-2023-4055

22

FAUCET Score

CVE-2023-4055 describes a vulnerability in Firefox where exceeding the cookie limit per domain could lead to an inconsistent cookie jar state, potentially causing requests to be sent with missing cookies. This affects Firefox versions prior to 116, and Firefox ESR versions prior to 102.14 and 115.1. With a CVSS score of 7.5 (HIGH), this vulnerability is network-exploitable with low complexity, requiring no user interaction, and could lead to high integrity impact by altering expected application behavior. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		< 116.0CPE matchmatch criteria	cpe:2.3:a:mozilla:firefox::::::::
		>= 102.0, < 102.14CPE matchmatch criteria	cpe:2.3:a:mozilla:firefox::::::::
		>= 115.0, < 115.1CPE matchmatch criteria	cpe:2.3:a:mozilla:firefox::::::::
		11.0CPE matchmatch criteria	cpe:2.3:o:debian:debian_linux:11.0:::::::*
		12.0CPE matchmatch criteria	cpe:2.3:o:debian:debian_linux:12.0:::::::*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

Exploitability Score

3.9

Impact Score

3.6

CvssVersion

3.1

Exploit Intelligence

EPSS Score

0.72%

Probability of exploitation in next 30 days

EPSS Percentile

50.1%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0072 is in the 26th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (25)

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 9.0 Extended Update SupportFixed in: thunderbird-0:102.14.0-1.el9_0

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: firefox-0:102.14.0-1.el7_9

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: thunderbird-0:102.14.0-1.el7_9

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8Fixed in: firefox-0:102.14.0-1.el8_8

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8Fixed in: thunderbird-0:102.14.0-1.el8_8

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.1 Update Services for SAP SolutionsFixed in: firefox-0:102.14.0-1.el8_1

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.1 Update Services for SAP SolutionsFixed in: thunderbird-0:102.14.0-1.el8_1

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.2 Advanced Update SupportFixed in: firefox-0:102.14.0-1.el8_2

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.2 Advanced Update SupportFixed in: thunderbird-0:102.14.0-1.el8_2

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceFixed in: firefox-0:102.14.0-1.el8_2

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceFixed in: thunderbird-0:102.14.0-1.el8_2

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.2 Update Services for SAP SolutionsFixed in: firefox-0:102.14.0-1.el8_2

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.2 Update Services for SAP SolutionsFixed in: thunderbird-0:102.14.0-1.el8_2

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportFixed in: firefox-0:102.14.0-1.el8_4

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportFixed in: thunderbird-0:102.14.0-1.el8_4

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.4 Telecommunications Update ServiceFixed in: firefox-0:102.14.0-1.el8_4

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.4 Telecommunications Update ServiceFixed in: thunderbird-0:102.14.0-1.el8_4

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.4 Update Services for SAP SolutionsFixed in: firefox-0:102.14.0-1.el8_4

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.4 Update Services for SAP SolutionsFixed in: thunderbird-0:102.14.0-1.el8_4

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.6 Extended Update SupportFixed in: firefox-0:102.14.0-1.el8_6

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.6 Extended Update SupportFixed in: thunderbird-0:102.14.0-1.el8_6

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 9Fixed in: firefox-0:102.14.0-1.el9_2

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 9Fixed in: thunderbird-0:102.14.0-1.el9_2

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 9.0 Extended Update SupportFixed in: firefox-0:102.14.0-1.el9_0

mozillavendor investigatingvia nvd_reference

Vendor Advisories (1)

redhatCVE-2023-4055Low

Mozilla: Cookie jar overflow caused unexpected cookie jar state

References

bugzilla.mozilla.org / show_bug.cgi

Issue TrackingPermissions Required

lists.debian.org / debian-lts-announce/2023/08/msg00008.html

lists.debian.org / debian-lts-announce/2023/08/msg00010.html

debian.org / security/2023/dsa-5464

Third Party Advisory

debian.org / security/2023/dsa-5469

Third Party Advisory

mozilla.org / security/advisories/mfsa2023-29

Vendor Advisory

mozilla.org / security/advisories/mfsa2023-30

Vendor Advisory

mozilla.org / security/advisories/mfsa2023-31

Vendor Advisory