CVE-2026-74288

HIGHPre-NVD 7.87.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-15. A secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 7.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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 v3
7.8
EG Score
7.8HIGHmedium confidence
EG Risk
35
EG Risk 35/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity78% × 45%
Impact severity (EG Severity): CVSS 7.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.1%
EPSS %ILE
2nd
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.8): severity, escalated by confirmed exploitation. This CVE's 7.8 is its impact severity (EG Severity), not escalated.

EG Severity
7.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.1% within 30 daysSource: FIRST EPSS. FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 15, 2026

Last Modified

October 16, 2026

Advisory Details (8)

Auto-updated Aug 17, 2026
Patch available.
Web page

net: fib_rules: Don't dump dying fib_rule in fib_rules_dump(). - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bb4a5b3c91af3c8d705bb2e9f6f8069a70db26fc
Web page

net: fib_rules: Don't dump dying fib_rule in fib_rules_dump(). - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a7ef30753353ba6a95d693b1863a0214222a199a
Web page

net: fib_rules: Don't dump dying fib_rule in fib_rules_dump(). - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4b7ae30c81c2ee10a644749a3704a5c797ccc308
Web page

net: fib_rules: Don't dump dying fib_rule in fib_rules_dump(). - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3af0bc1bd9039e2e50abf3e2d7fee411f38bce4e
Web page

net: fib_rules: Don't dump dying fib_rule in fib_rules_dump(). - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2dfdc210d240bd48bb2ea746430b02b5571b6db9
Web page

net: fib_rules: Don't dump dying fib_rule in fib_rules_dump(). - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2821e85c058f81c9948a2fb1a634f7b47457d51c
Web page

net: fib_rules: Don't dump dying fib_rule in fib_rules_dump(). - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1fbc6c6efe78f4454a51afa0587efb6826f60f00
Web page

net: fib_rules: Don't dump dying fib_rule in fib_rules_dump(). - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0f929b59f4cd0e05bb1ecefe12b77e85911d4be2

Vendor Advisories for CVE-2026-74288(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(15)

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (55 versions)
  • every version up to 6.1.180-1: fixed in 6.1.180-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.38-1 ... 6.12.96-1 (31 versions)
  • every version up to 6.12.100-1: fixed in 6.12.100-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.1~rc7-1~exp1 (160 versions)
  • every version up to 7.1.5-1: fixed in 7.1.5-1
—

All Vendor Advisories

(15)

Data Freshness Timeline

(refreshed 13× in last 7d / 79× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 211 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 111 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  2. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  3. 2026-10-18 03:14 UTCEG score recompute
  4. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  5. 2026-10-16 19:40 UTCEG score recompute
  6. 2026-10-16 19:40 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  7. 2026-10-16 19:01 UTCEG score recompute
  8. 2026-10-16 19:01 UTCVendor advisory
  9. 2026-10-16 19:00 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  10. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  11. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  12. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  13. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  14. 2026-10-13 07:39 UTCEG score recompute
  15. 2026-10-13 07:39 UTCVendor advisory
  16. 2026-10-13 07:38 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  17. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  18. 2026-10-12 15:40 UTCEG score recompute
  19. 2026-10-11 19:26 UTCEG score recompute
  20. 2026-10-11 16:41 UTCEG score recompute
  21. 2026-10-11 14:00 UTCEG score recompute
  22. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  23. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  24. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  25. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.2% · 6th percentile
Show 75 more
  1. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  2. 2026-10-06 22:31 UTCEG score recompute
  3. 2026-10-06 22:31 UTCVendor advisory
  4. 2026-10-06 22:30 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  5. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  6. 2026-10-06 09:11 UTCEG score recompute
  7. 2026-10-06 09:11 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  8. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  9. 2026-10-05 12:15 UTCEG score recompute
  10. 2026-10-05 12:15 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  11. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  12. 2026-10-04 21:58 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  13. 2026-10-04 08:17 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  14. 2026-10-03 19:32 UTCEG score recompute
  15. 2026-10-03 19:32 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  16. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  17. 2026-10-02 19:50 UTCEG score recompute
  18. 2026-10-02 19:50 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  19. 2026-10-02 07:05 UTCEG score recompute
  20. 2026-10-02 07:05 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  21. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  22. 2026-10-01 09:47 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  23. 2026-09-30 21:00 UTCEG score recompute
  24. 2026-09-30 21:00 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  25. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  26. 2026-09-29 00:32 UTCEG score recompute
  27. 2026-09-29 00:32 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  28. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  29. 2026-09-28 11:35 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  30. 2026-09-27 22:47 UTCEG score recompute
  31. 2026-09-27 22:47 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  32. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  33. 2026-09-27 08:28 UTCEG score recompute
  34. 2026-09-27 08:28 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  35. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  36. 2026-09-26 00:28 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  37. 2026-09-25 02:34 UTCEG score recompute
  38. 2026-09-25 02:34 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  39. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  40. 2026-09-24 11:03 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  41. 2026-09-23 22:18 UTCEG score recompute
  42. 2026-09-23 22:18 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  43. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  44. 2026-09-23 09:33 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  45. 2026-09-22 20:48 UTCEG score recompute
  46. 2026-09-22 20:48 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  47. 2026-09-22 08:02 UTCEG score recompute
  48. 2026-09-22 08:02 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  49. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  50. 2026-09-21 19:15 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  51. 2026-09-21 03:51 UTCEG score recompute
  52. 2026-09-21 03:51 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  53. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  54. 2026-09-20 15:05 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  55. 2026-09-20 01:11 UTCEG score recompute
  56. 2026-09-20 01:11 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  57. 2026-09-19 12:25 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  58. 2026-09-18 23:41 UTCEG score recompute
  59. 2026-09-18 23:41 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  60. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  61. 2026-09-18 10:55 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  62. 2026-09-17 22:10 UTCEG score recompute
  63. 2026-09-17 22:10 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  64. 2026-09-17 04:55 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  65. 2026-09-16 16:09 UTCEG score recompute
  66. 2026-09-16 16:09 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  67. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  68. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  69. 2026-09-16 02:29 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  70. 2026-09-15 13:44 UTCEG score recompute
  71. 2026-09-15 13:44 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  72. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  73. 2026-09-15 00:58 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8
  74. 2026-09-14 12:13 UTCEG score recompute
  75. 2026-09-14 12:13 UTCGHSA enrichmentGHSA-mfph-jxq2-hg99 · GitHub severity HIGH · GitHub CVSS 7.8

Frequently asked(5)

What is CVE-2026-74288?
CVE-2026-74288 is a high-severity vulnerability; its CVE record was published on August 15, 2026. In the Linux kernel, the following vulnerability has been resolved: net: fibrules: Don't dump dying fibrule in fibrulesdump(). rockerrouterfibevent() calls fibrule_get() during RCU dump. If the fibrule is dying, refcountinc() will complain about it. Let's call refcountincnotzero() in…
When was the CVE record for CVE-2026-74288 published?
The CVE record for CVE-2026-74288 was published on August 15, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 16, 2026; the record at its source may have been updated since.
Is CVE-2026-74288 actively exploited?
CVE-2026-74288 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (2nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-74288?
CVE-2026-74288 has a CVSS base score of 7.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-74288?
A fix for CVE-2026-74288 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-74288 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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