CVE-2026-74288: linux
Vulnerability summary
CVE-2026-74288 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.13% chance of exploitation in the next 30 days, higher than 2.3% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 25 · Related 25Timeline
- 15-08-2026PublishedVulnerability first disclosed.
- 16-10-2026Last modifiedVulnerability information updated.
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().
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.13%
Chance of exploitation in the next 30 days
Percentile
2%
Versus all other CVEs
30-day change
0.00 pp
From 0.13% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu168 products
- linuxAll versions (No fix recorded) | < 5.15.0-198.208 | < 6.8.0-147.147 | < 7.0.0-38.38
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.15.0-1117.124 | < 6.8.0-1067.70 | < 7.0.0-1014.14
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian1 product
- linux< 6.1.180-1 | < 6.12.100-1 | < 7.1.5-1
Linux1 product
- linux≥ 5d7bfd141924a5ece21eb612ad3c56612f041c1e, < 0f929b59f4cd0e05bb1ecefe12b77e85911d4be2 | ≥ 5d7bfd141924a5ece21eb612ad3c56612f041c1e, < 4b7ae30c81c2ee10a644749a3704a5c797ccc308 | ≥ 5d7bfd141924a5ece21eb612ad3c56612f041c1e, < 2dfdc210d240bd48bb2ea746430b02b5571b6db9 | ≥ 5d7bfd141924a5ece21eb612ad3c56612f041c1e, < a7ef30753353ba6a95d693b1863a0214222a199a | ≥ 5d7bfd141924a5ece21eb612ad3c56612f041c1e, < 1fbc6c6efe78f4454a51afa0587efb6826f60f00 | ≥ 5d7bfd141924a5ece21eb612ad3c56612f041c1e, < bb4a5b3c91af3c8d705bb2e9f6f8069a70db26fc | ≥ 5d7bfd141924a5ece21eb612ad3c56612f041c1e, < 3af0bc1bd9039e2e50abf3e2d7fee411f38bce4e | ≥ 5d7bfd141924a5ece21eb612ad3c56612f041c1e, < 2821e85c058f81c9948a2fb1a634f7b47457d51c | 4.12
3 vendors · 170 products