Is CVE-2024-56766 in the CISA KEV catalog?

No. CVE-2024-56766 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-56766?

CVE-2024-56766 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2024-56766?

CVE-2024-56766 has an EPSS score of 0.22% (12th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-56766?

Upgrade linux on debian 11 to 5.10.234-1 or later. Fixes are available for 15 affected products.

CVE & CISA-KEV Catalog

CVE-2024-56766

HIGH

7.8

CVSS v3

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: fix double free in atmel_pmecc_create_user() The "user" pointer was converted from being allocated with kzalloc() to being allocated by devm_kzalloc(). Calling kfree(user) will lead to a double free.

CWE-415

How to fix

Remediation Available

linuxDebian

Fixed in:5.10.234-1CVE-2024-56766

Fixed in:6.1.123-1CVE-2024-56766

Fixed in:6.12.8-1CVE-2024-56766

linux-hwe-6.11Ubuntu

Fixed in:6.11.0-21.21~24.04.1USN-7379-1

linux-image-6.11.0-1011-lowlatencyUbuntu

Fixed in:6.11.0-1011.12~24.04.1USN-7381-1

linux-image-6.11.0-1011-lowlatency-64kUbuntu

Fixed in:6.11.0-1011.12~24.04.1USN-7381-1

linux-image-6.11.0-1017-oemUbuntu

Fixed in:6.11.0-1017.17USN-7382-1

linux-image-6.11.0-21-genericUbuntu

Fixed in:6.11.0-21.21~24.04.1+1USN-7379-1

linux-image-6.11.0-21-generic-64kUbuntu

Fixed in:6.11.0-21.21~24.04.1+1USN-7379-1

linux-image-generic-64k-hwe-24.04Ubuntu

Fixed in:6.11.0-21.21~24.04.1USN-7379-1

linux-image-generic-hwe-24.04Ubuntu

Fixed in:6.11.0-21.21~24.04.1USN-7379-1

linux-image-lowlatency-64k-hwe-24.04Ubuntu

Fixed in:6.11.0-1011.12~24.04.1USN-7381-1

linux-image-lowlatency-hwe-24.04Ubuntu

Fixed in:6.11.0-1011.12~24.04.1USN-7381-1

linux-image-oem-24.04bUbuntu

Fixed in:6.11.0-1017.17USN-7382-1

linux-image-virtual-hwe-24.04Ubuntu

Fixed in:6.11.0-21.21~24.04.1USN-7379-1

linux-lowlatency-hwe-6.11Ubuntu

Fixed in:6.11.0-1011.12~24.04.1USN-7381-1

linux-oem-6.11Ubuntu

Fixed in:6.11.0-1017.17USN-7382-1

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 VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.22%probability of exploitation in 30 days

12thpercentile

Low risk: more likely to be exploited than 12% of all known CVEs.

References

Patch4

Other references5

Related Vulnerabilities

Other CWE-415 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-25136	Medium	6.5	90%	-	Fix
CVE-2018-0101	Critical	10.0	87%	-	Fix
CVE-2003-0545	Critical	9.8	85%	-	Fix
CVE-2019-3829	Medium	5.3	59%	-	Fix
CVE-2026-33824	Critical	9.8	56%	-	Fix
CVE-2021-3407	Medium	5.5	50%	-	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 2025-11-03.