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CVE-2025-40079

7.8 · HIGH
Published Oct 28, 2025 EPSS 0.14% (4th pctl)

Overview

CVE-2025-40079 is a high-severity vulnerability. It was published on October 28, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical Description

In the Linux kernel, the following vulnerability has been resolved:

riscv, bpf: Sign extend struct ops return values properly

The ns_bpf_qdisc selftest triggers a kernel panic:

Unable to handle kernel paging request at virtual address ffffffffa38dbf58

Current test_progs pgtable: 4K pagesize, 57-bit VAs, pgdp=0x00000001109cc000

[ffffffffa38dbf58] pgd=000000011fffd801, p4d=000000011fffd401, pud=000000011fffd001, pmd=0000000000000000

Oops [#1]

Modules linked in: bpf_testmod(OE) xt_conntrack nls_iso8859_1 [...] [last unloaded: bpf_testmod(OE)]

CPU: 1 UID: 0 PID: 23584 Comm: test_progs Tainted: G W OE 6.17.0-rc1-g2465bb83e0b4 #1 NONE

Tainted: [W]=WARN, [O]=OOT_MODULE, [E]=UNSIGNED_MODULE

Hardware name: Unknown Unknown Product/Unknown Product, BIOS 2024.01+dfsg-1ubuntu5.1 01/01/2024

epc : __qdisc_run+0x82/0x6f0

ra : __qdisc_run+0x6e/0x6f0

epc : ffffffff80bd5c7a ra : ffffffff80bd5c66 sp : ff2000000eecb550

gp : ffffffff82472098

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Frequently Asked Questions

What is CVE-2025-40079?

CVE-2025-40079 is a high-severity vulnerability. It was published on October 28, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-40079?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-40079?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-40079?

CyberStrike's AI-powered security agents can automatically detect CVE-2025-40079 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.