How severe is CVE-2024-26677?

CVE-2024-26677 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-26677 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-26677?

CVE-2024-26677 primarily affects Linux Linux Kernel. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-26677?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-26677 have an EU (EUVD) identifier?

Yes. CVE-2024-26677 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-23939.

When was CVE-2024-26677 published?

CVE-2024-26677 was published on 2024-04-02 and last updated on 2026-06-17.

CVE-2024-26677

CVE-2024-26677 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 5.5. 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-476.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-23939
Weakness: CWE-476
Affected product: Linux Linux Kernel
Published: 2024-04-02
Last modified: 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix delayed ACKs to not set the reference serial number Fix the construction of delayed ACKs to not set the reference serial number as they can't be used as an RTT reference.

Frequently asked questions

What is CVE-2024-26677?: In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix delayed ACKs to not set the reference serial number Fix the construction of delayed ACKs to not set the reference serial number as they can't be used as an RTT reference.
How severe is CVE-2024-26677?: CVE-2024-26677 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-26677 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-26677?: CVE-2024-26677 primarily affects Linux Linux Kernel. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-26677?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-26677 have an EU (EUVD) identifier?: Yes. CVE-2024-26677 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-23939.
When was CVE-2024-26677 published?: CVE-2024-26677 was published on 2024-04-02 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.8:rc3:*:*:*:*:*:*

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