Is CVE-2024-6600 in the CISA KEV catalog?

No. CVE-2024-6600 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-6600?

CVE-2024-6600 has a CVSS v3 base score of 6.3 (MEDIUM).

What is the EPSS score for CVE-2024-6600?

CVE-2024-6600 has an EPSS score of 0.40% (32th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-6600?

Upgrade thunderbird on ubuntu 20.04 to 1:115.13.0+build5-0ubuntu0.20.04.1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2024-6600

MEDIUM

6.3

CVSS v3

NVD

Description

Due to large allocation checks in Angle for GLSL shaders being too lenient an out-of-bounds access could occur when allocating more than 8192 ints in private shader memory on macOS. This vulnerability affects Firefox < 128, Firefox ESR < 115.13, Thunderbird < 115.13, and Thunderbird < 128.

CWE-770Allocation of Resources Without Limits or Throttling

How to fix

Remediation Available

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:128.0Fixed in:128.0Mozilla

Affected:115.13Fixed in:115.13Mozilla

Mozilla Firefox (en-US)Windows application

Affected:128.0Fixed in:128.0Mozilla

Affected:115.13Fixed in:115.13Mozilla

Mozilla Thunderbird (en-US)Windows application

Affected:116.0 128.0Fixed in:128.0Mozilla

Affected:115.13Fixed in:115.13Mozilla

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 InteractionRequired

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityLow

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

Exploit Intelligence

0.40%probability of exploitation in 30 days

32ndpercentile

Low risk: more likely to be exploited than 32% of all known CVEs.

References

Vendor Advisory4

Issue Tracking1

bugzilla.mozilla.org

Related Vulnerabilities

Other CWE-770 (Allocation of Resources Without Limits or Throttling) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-50387	High	7.5	100%	-	Fix
CVE-2019-11478	Medium	5.3	95%	-	Fix
CVE-2019-11479	High	7.5	92%	-	Fix
CVE-2024-27316	High	7.5	91%	-	Fix
CVE-2022-30522	High	7.5	90%	-	Fix
CVE-2019-9515	High	7.5	88%	-	Fix

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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 2025-09-26.