Is CVE-2024-6602 in the CISA KEV catalog?

No. CVE-2024-6602 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-6602?

CVE-2024-6602 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2024-6602?

CVE-2024-6602 has an EPSS score of 0.98% (58th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-6602?

Upgrade firefox on debian unstable to 128.0-1 or later. Fixes are available for 58 affected products.

CVE & CISA-KEV Catalog

CVE-2024-6602

CRITICAL

9.8

CVSS v3

NVD

Description

A mismatch between allocator and deallocator could have led to memory corruption. This vulnerability affects Firefox < 128, Firefox ESR < 115.13, Thunderbird < 115.13, and Thunderbird < 128.

CWE-94Code Injection

How to fix

Remediation Available

firefoxDebian

Fixed in:128.0-1CVE-2024-6602

firefoxRocky

Fixed in:0:128.2.0-1.el8_2RHSA-2024:6839

firefoxRed Hat / RHEL

Fixed in:0:128.2.0-1.el8_2RHSA-2024:6839

firefox-debuginfoRed Hat / RHEL

Fixed in:0:128.2.0-1.el8_2RHSA-2024:6839

firefox-debuginfoRocky

Fixed in:0:128.2.0-1.el8_2RHSA-2024:6839

firefox-debugsourceRed Hat / RHEL

Fixed in:0:128.2.0-1.el8_2RHSA-2024:6839

firefox-debugsourceRocky

Fixed in:0:128.2.0-1.el8_2RHSA-2024:6839

nsprRed Hat / RHEL

Fixed in:0:4.35.0-14.el9_2RHBA-2024:6679

nsprRocky

Fixed in:0:4.35.0-14.el9_2RHBA-2024:6679

nspr-debuginfoRed Hat / RHEL

Fixed in:0:4.35.0-14.el9_2RHBA-2024:6679

nspr-debuginfoRocky

Fixed in:0:4.35.0-14.el9_2RHBA-2024:6679

nspr-develRocky

Fixed in:0:4.35.0-14.el9_2RHBA-2024:6679

nspr-develRed Hat / RHEL

Fixed in:0:4.35.0-14.el9_2RHBA-2024:6679

nssRed Hat / RHEL

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nssRocky

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-debuginfoRed Hat / RHEL

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-debuginfoRocky

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-debugsourceRocky

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-debugsourceRed Hat / RHEL

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-develRed Hat / RHEL

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-develRocky

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-softoknRocky

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-softoknRed Hat / RHEL

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-softokn-debuginfoRed Hat / RHEL

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-softokn-debuginfoRocky

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-softokn-develRed Hat / RHEL

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-softokn-develRocky

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-softokn-freeblRocky

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-softokn-freeblRed Hat / RHEL

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-softokn-freebl-debuginfoRocky

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-softokn-freebl-debuginfoRed Hat / RHEL

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-softokn-freebl-develRocky

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-softokn-freebl-develRed Hat / RHEL

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-sysinitRed Hat / RHEL

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-sysinitRocky

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-sysinit-debuginfoRocky

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-sysinit-debuginfoRed Hat / RHEL

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-toolsRocky

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-toolsRed Hat / RHEL

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-tools-debuginfoRed Hat / RHEL

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-tools-debuginfoRocky

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-utilRed Hat / RHEL

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-utilRocky

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-util-debuginfoRed Hat / RHEL

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-util-debuginfoRocky

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-util-develRed Hat / RHEL

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

nss-util-develRocky

Fixed in:0:3.101.0-7.el8_8RHBA-2024:6680

Fixed in:0:3.101.0-7.el9_2RHBA-2024:6679

thunderbirdRocky

Fixed in:0:115.13.0-3.el8_8RHSA-2024:4718

Fixed in:0:115.13.0-3.el8_4RHSA-2024:4671

Fixed in:0:115.13.0-3.el8_2RHSA-2024:4717

Fixed in:0:115.13.0-3.el8_6RHSA-2024:4894

Fixed in:0:115.13.0-3.el8_8RHSA-2024:4718

Fixed in:0:115.13.0-3.el9_0RHSA-2024:4625

Fixed in:0:115.13.0-3.el9_2RHSA-2024:4670

Fixed in:0:115.13.0-3.el9_0RHSA-2024:4625

Fixed in:0:115.13.0-3.el9_2RHSA-2024:4670

Fixed in:0:115.13.0-3.el9_0RHSA-2024:4625

Fixed in:0:115.13.0-3.el9_2RHSA-2024:4670

thunderbirdRed Hat / RHEL

Fixed in:0:115.13.0-3.el8_8RHSA-2024:4718

Fixed in:0:115.13.0-3.el8_4RHSA-2024:4671

Fixed in:0:115.13.0-3.el8_8RHSA-2024:4718

Fixed in:0:115.13.0-3.el8_4RHSA-2024:4671

Fixed in:0:115.13.0-3.el8_2RHSA-2024:4717

Fixed in:0:115.13.0-3.el8_6RHSA-2024:4894

Fixed in:0:115.13.0-3.el8_8RHSA-2024:4718

Fixed in:0:115.13.0-3.el9_2RHSA-2024:4670

Fixed in:0:115.13.0-3.el9_0RHSA-2024:4625

Fixed in:0:115.13.0-3.el9_2RHSA-2024:4670

Fixed in:0:115.13.0-3.el9_0RHSA-2024:4625

Fixed in:0:115.13.0-3.el9_2RHSA-2024:4670

Fixed in:0:115.13.0-3.el9_0RHSA-2024:4625

thunderbird-debuginfoRed Hat / RHEL

Fixed in:0:115.13.0-3.el8_2RHSA-2024:4717

Fixed in:0:115.13.0-3.el8_8RHSA-2024:4718

Fixed in:0:115.13.0-3.el8_6RHSA-2024:4894

Fixed in:0:115.13.0-3.el8_8RHSA-2024:4718

Fixed in:0:115.13.0-3.el8_6RHSA-2024:4894

Fixed in:0:115.13.0-3.el8_4RHSA-2024:4671

Fixed in:0:115.13.0-3.el8_8RHSA-2024:4718

Fixed in:0:115.13.0-3.el9_2RHSA-2024:4670

Fixed in:0:115.13.0-3.el9_0RHSA-2024:4625

Fixed in:0:115.13.0-3.el9_2RHSA-2024:4670

thunderbird-debuginfoRocky

Fixed in:0:115.13.0-3.el8_6RHSA-2024:4894

Fixed in:0:115.13.0-3.el8_2RHSA-2024:4717

Fixed in:0:115.13.0-3.el8_4RHSA-2024:4671

Fixed in:0:115.13.0-3.el8_8RHSA-2024:4718

Fixed in:0:115.13.0-3.el8_6RHSA-2024:4894

Fixed in:0:115.13.0-3.el8_8RHSA-2024:4718

Fixed in:0:115.13.0-3.el8_6RHSA-2024:4894

Fixed in:0:115.13.0-3.el9_0RHSA-2024:4625

Fixed in:0:115.13.0-3.el9_2RHSA-2024:4670

thunderbird-debugsourceRocky

Fixed in:0:115.13.0-3.el8_4RHSA-2024:4671

Fixed in:0:115.13.0-3.el8_8RHSA-2024:4718

Fixed in:0:115.13.0-3.el8_6RHSA-2024:4894

Fixed in:0:115.13.0-3.el8_2RHSA-2024:4717

Fixed in:0:115.13.0-3.el8_8RHSA-2024:4718

Fixed in:0:115.13.0-3.el8_4RHSA-2024:4671

Fixed in:0:115.13.0-3.el9_2RHSA-2024:4670

Fixed in:0:115.13.0-3.el9_0RHSA-2024:4625

Fixed in:0:115.13.0-3.el9_2RHSA-2024:4670

Fixed in:0:115.13.0-3.el9_0RHSA-2024:4625

Fixed in:0:115.13.0-3.el9_2RHSA-2024:4670

Fixed in:0:115.13.0-3.el9_0RHSA-2024:4625

thunderbird-debugsourceRed Hat / RHEL

Fixed in:0:115.13.0-3.el8_8RHSA-2024:4718

Fixed in:0:115.13.0-3.el8_6RHSA-2024:4894

Fixed in:0:115.13.0-3.el8_8RHSA-2024:4718

Fixed in:0:115.13.0-3.el8_2RHSA-2024:4717

Fixed in:0:115.13.0-3.el8_8RHSA-2024:4718

Fixed in:0:115.13.0-3.el8_4RHSA-2024:4671

Fixed in:0:115.13.0-3.el9_2RHSA-2024:4670

Fixed in:0:115.13.0-3.el9_0RHSA-2024:4625

Fixed in:0:115.13.0-3.el9_2RHSA-2024:4670

Fixed in:0:115.13.0-3.el9_0RHSA-2024:4625

Fixed in:0:115.13.0-3.el9_2RHSA-2024:4670

firefoxUbuntu

Fixed in:128.0+build2-0ubuntu0.20.04.1USN-6890-1

thunderbirdUbuntu

Fixed in:1:115.13.0+build5-0ubuntu0.20.04.1USN-6903-1

Fixed in:1:115.13.0+build5-0ubuntu0.22.04.1USN-6903-1

DeveloperEditionWindows application

Affected:115.13Fixed in:115.13Mozilla

Affected:128.0Fixed in:128.0Mozilla

Mozilla Firefox (en-US)Windows application

Affected:115.13Fixed in:115.13Mozilla

Affected:128.0Fixed in:128.0Mozilla

Mozilla Thunderbird (en-US)Windows application

Affected:115.13Fixed in:115.13Mozilla

Affected:116.0 128.0Fixed in:128.0Mozilla

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.98%probability of exploitation in 30 days

58thpercentile

Moderate risk: more likely to be exploited than 58% of all known CVEs.

References

Vendor Advisory4

Issue Tracking1

bugzilla.mozilla.org

Other references1

lists.debian.org

Related Vulnerabilities

Other CWE-94 (Code Injection) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-9841	Critical	9.8	100%	KEV	Fix
CVE-2015-1635	Critical	9.8	100%	KEV	-
CVE-2022-22954	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-22204	Medium	6.8	100%	KEV	Fix
CVE-2025-3248	Critical	9.8	100%	KEV	Fix
CVE-2012-0158	High	8.8	100%	KEV	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-03.