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CVE-2026-74288

HIGHCVSS 7.8/10EPSS 0.18%

Last modified

CVE-2026-74288 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: net: fib_rules: Don't dump dying fib_rule in fib_rules_dump(). rocker_router_fib_event() calls fib_rule_get() during RCU dump. If the fib_rule is dying, refcount_inc() will complain about it. Let's call refcount_inc_not_zero() in fib_rules_dump().. EPSS estimates a 0.18% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: net: fib_rules: Don't dump dying fib_rule in fib_rules_dump(). rocker_router_fib_event() calls fib_rule_get() during RCU dump. If the fib_rule is dying, refcount_inc() will complain about it. Let's call refcount_inc_not_zero() in fib_rules_dump().

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
0.18%

7.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 5d7bfd141924a5ece21eb612ad3c56612f041c1e, < 0f929b59f4cd0e05bb1ecefe12b77e85911d4be2; >= 5d7bfd141924a5ece21eb612ad3c56612f041c1e, < 4b7ae30c81c2ee10a644749a3704a5c797ccc308; >= 5d7bfd141924a5ece21eb612ad3c56612f041c1e, < 2dfdc210d240bd48bb2ea746430b02b5571b6db9; >= 5d7bfd141924a5ece21eb612ad3c56612f041c1e, < a7ef30753353ba6a95d693b1863a0214222a199a; >= 5d7bfd141924a5ece21eb612ad3c56612f041c1e, < 1fbc6c6efe78f4454a51afa0587efb6826f60f00; >= 5d7bfd141924a5ece21eb612ad3c56612f041c1e, < bb4a5b3c91af3c8d705bb2e9f6f8069a70db26fc; >= 5d7bfd141924a5ece21eb612ad3c56612f041c1e, < 3af0bc1bd9039e2e50abf3e2d7fee411f38bce4e; >= 5d7bfd141924a5ece21eb612ad3c56612f041c1e, < 2821e85c058f81c9948a2fb1a634f7b47457d51c
LinuxLinux4.12

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-74288?
In the Linux kernel, the following vulnerability has been resolved: net: fib_rules: Don't dump dying fib_rule in fib_rules_dump(). rocker_router_fib_event() calls fib_rule_get() during RCU dump. If the fib_rule is dying, refcount_inc() will complain about it. Let's call refcount_inc_not_zero() in fib_rules_dump().
How severe is CVE-2026-74288?
CVE-2026-74288 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.
How do I fix CVE-2026-74288?
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.

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Source: NVD / NIST