How severe is CVE-2024-0646?

CVE-2024-0646 has a CVSS 3.x base score of 7.0, rated high severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-0646 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-0646?

CVE-2024-0646 primarily affects Redhat Enterprise Linux. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-0646?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-0646 have an EU (EUVD) identifier?

Yes. CVE-2024-0646 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-16438.

When was CVE-2024-0646 published?

CVE-2024-0646 was published on 2024-01-17 and last updated on 2026-06-17.

CVE-2024-0646

CVE-2024-0646 is a high-severity vulnerability in Redhat Enterprise Linux with a CVSS 3.x base score of 7.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 7.0)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-16438
Weakness: CWE-787
Affected product: Redhat Enterprise Linux
Published: 2024-01-17
Last modified: 2026-06-17

Description

An out-of-bounds memory write flaw was found in the Linux kernel’s Transport Layer Security functionality in how a user calls a function splice with a ktls socket as the destination. This flaw allows a local user to crash or potentially escalate their privileges on the system.

Frequently asked questions

What is CVE-2024-0646?: An out-of-bounds memory write flaw was found in the Linux kernel’s Transport Layer Security functionality in how a user calls a function splice with a ktls socket as the destination. This flaw allows a local user to crash or potentially escalate their privileges on the system.
How severe is CVE-2024-0646?: CVE-2024-0646 has a CVSS 3.x base score of 7.0, rated high severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-0646 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-0646?: CVE-2024-0646 primarily affects Redhat Enterprise Linux. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-0646?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-0646 have an EU (EUVD) identifier?: Yes. CVE-2024-0646 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-16438.
When was CVE-2024-0646 published?: CVE-2024-0646 was published on 2024-01-17 and last updated on 2026-06-17.

References

Affected products (7)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.7:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.7:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.7:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.7:rc4:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*

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