CVE-2025-37823

HIGHCVSS 7.8/10EPSS 0.17%

Last modified

CVE-2025-37823 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too Similarly to the previous patch, we need to safe guard hfsc_dequeue() too. But for this one, we don't have a reliable reproducer.. EPSS estimates a 0.17% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too Similarly to the previous patch, we need to safe guard hfsc_dequeue() too. But for this one, we don't have a reliable reproducer.

Metrics

CVSS 3.1
7.8/10

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

EPSS Probability
0.17%

6.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
LinuxLinux Kernel>= 2.6.13, < 5.4.293
LinuxLinux Kernel>= 5.5, < 5.10.237
LinuxLinux Kernel>= 5.11, < 5.15.181
LinuxLinux Kernel>= 5.16, < 6.1.136
LinuxLinux Kernel>= 6.2, < 6.6.89
LinuxLinux Kernel>= 6.7, < 6.12.26
LinuxLinux Kernel>= 6.13, < 6.14.5
LinuxLinux Kernel2.6.12
LinuxLinux Kernel6.15Rc1
DebianDebian Linux11.0

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2025-37823?
In the Linux kernel, the following vulnerability has been resolved: net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too Similarly to the previous patch, we need to safe guard hfsc_dequeue() too. But for this one, we don't have a reliable reproducer.
How severe is CVE-2025-37823?
CVE-2025-37823 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.
How do I fix CVE-2025-37823?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-37823?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST