How severe is CVE-2024-47677?

CVE-2024-47677 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-2024-47677 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-47677?

CVE-2024-47677 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-47677?

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

Does CVE-2024-47677 have an EU (EUVD) identifier?

Yes. CVE-2024-47677 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-42598.

When was CVE-2024-47677 published?

CVE-2024-47677 was published on 2024-10-21 and last updated on 2026-06-17.

CVE-2024-47677

CVE-2024-47677 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-401.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-42598
Weakness: CWE-401
Affected product: Linux Linux Kernel
Published: 2024-10-21
Last modified: 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: exfat: resolve memory leak from exfat_create_upcase_table() If exfat_load_upcase_table reaches end and returns -EINVAL, allocated memory doesn't get freed and while exfat_load_default_upcase_table allocates more memory, leading to a memory leak. Here's link to syzkaller crash report illustrating this issue: https://syzkaller.appspot.com/text?tag=CrashReport&x=1406c201980000

Frequently asked questions

What is CVE-2024-47677?: In the Linux kernel, the following vulnerability has been resolved: exfat: resolve memory leak from exfat_create_upcase_table() If exfat_load_upcase_table reaches end and returns -EINVAL, allocated memory doesn't get freed and while exfat_load_default_upcase_table allocates more memory, leading to a memory leak. Here's link to syzkaller crash report illustrating this issue: https://syzkaller.appspot.com/text?tag=CrashReport&x=1406c201980000
How severe is CVE-2024-47677?: CVE-2024-47677 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-2024-47677 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-47677?: CVE-2024-47677 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-47677?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-47677 have an EU (EUVD) identifier?: Yes. CVE-2024-47677 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-42598.
When was CVE-2024-47677 published?: CVE-2024-47677 was published on 2024-10-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

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