CVE-2026-68454

HIGHPre-NVD 8.88.8
EchelonGraph scoreMEDIUM confidence

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

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-13. A secondary CVSS source baseline 8.8; 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
8.8EG
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: 8.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

KVM: s390: pci: Fix handling of AIF enable without AISB

When a guest seeks to register IRQs without a summary bit specified, ensure that the associated GAITE then stores 0 for the guest AISB location instead of virt_to_phys(page_address(NULL)).

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
40
EG Risk 40/100

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)
Severity88% × 45%
Impact severity (EG Severity): CVSS 8.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.1% × 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 (8.8): severity, escalated by confirmed exploitation. This CVE's 8.8 is its impact severity (EG Severity), not escalated.

EG Severity
8.8 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 (model v2026.06.15, score date 2026-10-19). 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 13, 2026

Last Modified

October 19, 2026

Advisory Details (6)

Auto-updated Aug 14, 2026
Patch available.
Web page

KVM: s390: pci: Fix handling of AIF enable without AISB - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f887df91826e72b570c5e9298e66dd929f09edde
Web page

KVM: s390: pci: Fix handling of AIF enable without AISB - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/df72596278b0e22dac5ef2881e9221a3a2c4ed11
Web page

KVM: s390: pci: Fix handling of AIF enable without AISB - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d48b9b096d11e31690c0a4988f65f21b64c01b2a
Web page

KVM: s390: pci: Fix handling of AIF enable without AISB - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3ef3190e30601b2688bdc64169b938b8d7f42010
Web page

KVM: s390: pci: Fix handling of AIF enable without AISB - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3e3aa6da87d30a0064a17b836685cd43c90a3572
Web page

KVM: s390: pci: Fix handling of AIF enable without AISB - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/124a3769c43713a11a93a821b313e61ad5110cb8

Vendor Advisories for CVE-2026-68454(2)

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

Patch Availability(9)

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
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(9)

Data Freshness Timeline

(refreshed 21× in last 7d / 103× 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 286 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 186 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-19 22:30 UTCEG score recompute
  2. 2026-10-19 22:30 UTCVendor advisory
  3. 2026-10-19 22:30 UTCGHSA enrichmentGHSA-4h5w-742q-hw8j · GitHub severity HIGH · GitHub CVSS 8.8
  4. 2026-10-19 21:24 UTCEG score recompute
  5. 2026-10-19 21:24 UTCVendor advisory
  6. 2026-10-19 21:24 UTCGHSA enrichmentGHSA-4h5w-742q-hw8j · GitHub severity HIGH · GitHub CVSS 8.8
  7. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  8. 2026-10-18 03:19 UTCEG score recompute
  9. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  10. 2026-10-16 17:32 UTCEG score recompute
  11. 2026-10-16 17:32 UTCVendor advisory
  12. 2026-10-16 17:31 UTCGHSA enrichmentGHSA-4h5w-742q-hw8j · GitHub severity HIGH · GitHub CVSS 8.8
  13. 2026-10-16 16:43 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  14. 2026-10-16 16:06 UTCEG score recompute
  15. 2026-10-16 16:05 UTCGHSA enrichmentGHSA-4h5w-742q-hw8j · GitHub severity HIGH · GitHub CVSS 8.8
  16. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  17. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  18. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  19. 2026-10-13 10:06 UTCEG score recompute
  20. 2026-10-13 10:06 UTCVendor advisory
  21. 2026-10-13 10:06 UTCGHSA enrichmentGHSA-4h5w-742q-hw8j · GitHub severity HIGH · GitHub CVSS 8.8
  22. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  23. 2026-10-12 15:45 UTCEG score recompute
  24. 2026-10-11 19:30 UTCEG score recompute
  25. 2026-10-11 16:45 UTCEG score recompute
Show 75 more
  1. 2026-10-11 14:06 UTCEG score recompute
  2. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  3. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  4. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  5. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  6. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  7. 2026-10-07 02:21 UTCEG score recompute
  8. 2026-10-07 02:21 UTCVendor advisory
  9. 2026-10-07 02:21 UTCGHSA enrichmentGHSA-4h5w-742q-hw8j · GitHub severity HIGH · GitHub CVSS 8.8
  10. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  11. 2026-10-06 13:26 UTCEG score recompute
  12. 2026-10-06 13:26 UTCVendor advisory
  13. 2026-10-06 13:26 UTCGHSA enrichmentGHSA-4h5w-742q-hw8j · GitHub severity HIGH · GitHub CVSS 8.8
  14. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  15. 2026-10-05 14:39 UTCEG score recompute
  16. 2026-10-05 14:39 UTCVendor advisory
  17. 2026-10-05 14:39 UTCGHSA enrichmentGHSA-4h5w-742q-hw8j · GitHub severity HIGH · GitHub CVSS 8.8
  18. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  19. 2026-10-04 22:22 UTCVendor advisory
  20. 2026-10-04 22:22 UTCGHSA enrichmentGHSA-4h5w-742q-hw8j · GitHub severity HIGH · GitHub CVSS 8.8
  21. 2026-10-04 08:49 UTCVendor advisory
  22. 2026-10-04 08:49 UTCGHSA enrichmentGHSA-4h5w-742q-hw8j · GitHub severity HIGH · GitHub CVSS 8.8
  23. 2026-10-03 19:49 UTCEG score recompute
  24. 2026-10-03 19:49 UTCVendor advisory
  25. 2026-10-03 19:49 UTCGHSA enrichmentGHSA-4h5w-742q-hw8j · GitHub severity HIGH · GitHub CVSS 8.8
  26. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  27. 2026-10-02 21:53 UTCEG score recompute
  28. 2026-10-02 21:53 UTCVendor advisory
  29. 2026-10-02 21:53 UTCGHSA enrichmentGHSA-4h5w-742q-hw8j · GitHub severity HIGH · GitHub CVSS 8.8
  30. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  31. 2026-10-02 07:35 UTCEG score recompute
  32. 2026-10-02 07:35 UTCVendor advisory
  33. 2026-10-02 07:34 UTCGHSA enrichmentGHSA-4h5w-742q-hw8j · GitHub severity HIGH · GitHub CVSS 8.8
  34. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  35. 2026-10-01 10:48 UTCVendor advisory
  36. 2026-10-01 10:48 UTCGHSA enrichmentGHSA-4h5w-742q-hw8j · GitHub severity HIGH · GitHub CVSS 8.8
  37. 2026-09-30 21:48 UTCEG score recompute
  38. 2026-09-30 21:48 UTCVendor advisory
  39. 2026-09-30 21:48 UTCGHSA enrichmentGHSA-4h5w-742q-hw8j · GitHub severity HIGH · GitHub CVSS 8.8
  40. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  41. 2026-09-29 04:07 UTCEG score recompute
  42. 2026-09-29 04:07 UTCVendor advisory
  43. 2026-09-29 04:07 UTCGHSA enrichmentGHSA-4h5w-742q-hw8j · GitHub severity HIGH · GitHub CVSS 8.8
  44. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  45. 2026-09-28 13:48 UTCVendor advisory
  46. 2026-09-28 13:48 UTCGHSA enrichmentGHSA-4h5w-742q-hw8j · GitHub severity HIGH · GitHub CVSS 8.8
  47. 2026-09-28 00:50 UTCEG score recompute
  48. 2026-09-28 00:50 UTCVendor advisory
  49. 2026-09-28 00:50 UTCGHSA enrichmentGHSA-4h5w-742q-hw8j · GitHub severity HIGH · GitHub CVSS 8.8
  50. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  51. 2026-09-27 09:45 UTCEG score recompute
  52. 2026-09-27 09:45 UTCVendor advisory
  53. 2026-09-27 09:45 UTCGHSA enrichmentGHSA-4h5w-742q-hw8j · GitHub severity HIGH · GitHub CVSS 8.8
  54. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  55. 2026-09-25 03:34 UTCEG score recompute
  56. 2026-09-25 03:34 UTCVendor advisory
  57. 2026-09-25 03:34 UTCGHSA enrichmentGHSA-4h5w-742q-hw8j · GitHub severity HIGH · GitHub CVSS 8.8
  58. 2026-09-24 02:08 UTCEG score recompute
  59. 2026-09-24 02:08 UTCVendor advisory
  60. 2026-09-24 02:08 UTCGHSA enrichmentGHSA-4h5w-742q-hw8j · GitHub severity HIGH · GitHub CVSS 8.8
  61. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  62. 2026-09-23 13:13 UTCVendor advisory
  63. 2026-09-23 13:13 UTCGHSA enrichmentGHSA-4h5w-742q-hw8j · GitHub severity HIGH · GitHub CVSS 8.8
  64. 2026-09-23 00:18 UTCEG score recompute
  65. 2026-09-23 00:18 UTCVendor advisory
  66. 2026-09-23 00:18 UTCGHSA enrichmentGHSA-4h5w-742q-hw8j · GitHub severity HIGH · GitHub CVSS 8.8
  67. 2026-09-22 11:23 UTCVendor advisory
  68. 2026-09-22 11:23 UTCGHSA enrichmentGHSA-4h5w-742q-hw8j · GitHub severity HIGH · GitHub CVSS 8.8
  69. 2026-09-21 22:29 UTCEG score recompute
  70. 2026-09-21 22:29 UTCVendor advisory
  71. 2026-09-21 22:28 UTCGHSA enrichmentGHSA-4h5w-742q-hw8j · GitHub severity HIGH · GitHub CVSS 8.8
  72. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  73. 2026-09-21 09:32 UTCEG score recompute
  74. 2026-09-21 09:32 UTCVendor advisory
  75. 2026-09-21 09:32 UTCGHSA enrichmentGHSA-4h5w-742q-hw8j · GitHub severity HIGH · GitHub CVSS 8.8

Frequently asked(5)

What is CVE-2026-68454?
CVE-2026-68454 is a high-severity vulnerability; its CVE record was published on August 13, 2026. In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pci: Fix handling of AIF enable without AISB When a guest seeks to register IRQs without a summary bit specified, ensure that the associated GAITE then stores 0 for the guest AISB location instead of…
When was the CVE record for CVE-2026-68454 published?
The CVE record for CVE-2026-68454 was published on August 13, 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 19, 2026; the record at its source may have been updated since.
Is CVE-2026-68454 actively exploited?
CVE-2026-68454 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-2026-68454?
CVE-2026-68454 has a CVSS base score of 8.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-68454?
A fix for CVE-2026-68454 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-68454 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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