CVE-2026-80684

CRITICALPre-NVD 9.39.3
EchelonGraph scoreMEDIUM confidence

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

Score 9.3 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-28. A secondary CVSS source baseline 9.3; 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

Also known asEUVD-2026-67560 (ENISA EUVD) · GHSA-q4fh-xh4r-x3xp (GitHub Security Advisories)Source: ENISA EUVD

9.3EG
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: 0.2%CVSS: 9.3Exploit: 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 NULL dereference on AIBV allocation failure

The airq_iv_create() can return NULL on failure, but the return value was never checked. If it fails, zdev->aibv will be NULL and fail when dereferenced in kvm_zpci_set_airq(). Add a NULL check and free the previously allocated AISB bit and zdev->aisb on failure.

CVSS v3
9.3
EG Score
9.3CRITICALmedium confidence
EG Risk
42
EG Risk 42/100

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)
Severity93% × 45%
Impact severity (EG Severity): CVSS 9.3 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
0.2%
EPSS %ILE
9th
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 (9.3): severity, escalated by confirmed exploitation. This CVE's 9.3 is its impact severity (EG Severity), not escalated.

EG Severity
9.3 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-29). 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 28, 2026

Last Modified

October 16, 2026

Advisory Details (6)

Auto-updated Oct 7, 2026
Patch available.
Web page

KVM: s390: pci: Fix NULL dereference on AIBV allocation failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e137d082325bbcae780087b57501d38585e625d9
Web page

KVM: s390: pci: Fix NULL dereference on AIBV allocation failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/df947d85e164a50a29d43a96e814f69ab1d0f7ed
Web page

KVM: s390: pci: Fix NULL dereference on AIBV allocation failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d1a103dc9016c25e7423ce5841a5cc2df76d59f3
Web page

KVM: s390: pci: Fix NULL dereference on AIBV allocation failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/96099486b63985801c9c6ef22505e9aa635b2d20
Web page

KVM: s390: pci: Fix NULL dereference on AIBV allocation failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8bf09b9b7d3232806df95f409581f8a9fd99a3fa
Web page

KVM: s390: pci: Fix NULL dereference on AIBV allocation failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0a95abe964400771ad82b027d7b84a0d183cd0db

Vendor Advisories for CVE-2026-80684(2)

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

Affected Packages

(4 across 3 ecosystems)
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (56 versions)
  • every version up to 6.1.187-1: fixed in 6.1.187-1
—
linux-6.126.12.100-1~deb12u1, 6.12.101-1~deb12u1
  • every version up to 6.12.107-1~deb12u1: fixed in 6.12.107-1~deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 6.12.96-1 (33 versions)
  • every version up to 6.12.105-1: fixed in 6.12.105-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.1~rc7-1~exp1 (165 versions)
  • every version up to 7.1.8-1: fixed in 7.1.8-1
—

Data Freshness Timeline

(refreshed 25× in last 7d / 168× 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 509 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 409 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  2. 2026-10-30 11:21 UTCEG score recompute
  3. 2026-10-30 11:21 UTCVendor advisory
  4. 2026-10-30 11:21 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  5. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  6. 2026-10-29 12:10 UTCEG score recompute
  7. 2026-10-29 12:10 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  8. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  9. 2026-10-28 12:51 UTCEG score recompute
  10. 2026-10-28 12:51 UTCVendor advisory
  11. 2026-10-28 12:51 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  12. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  13. 2026-10-27 13:40 UTCEG score recompute
  14. 2026-10-27 13:40 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  15. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  16. 2026-10-26 13:57 UTCEG score recompute
  17. 2026-10-26 13:56 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  18. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  19. 2026-10-25 14:21 UTCVendor advisory
  20. 2026-10-25 14:21 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  21. 2026-10-25 13:59 UTCEG score recompute
  22. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  23. 2026-10-24 15:08 UTCEG score recompute
  24. 2026-10-24 15:08 UTCVendor advisory
  25. 2026-10-24 15:08 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
Show 75 more
  1. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  2. 2026-10-23 15:56 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  3. 2026-10-22 16:39 UTCEG score recompute
  4. 2026-10-22 16:39 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  5. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  6. 2026-10-21 16:50 UTCEG score recompute
  7. 2026-10-21 16:50 UTCVendor advisory
  8. 2026-10-21 16:50 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  9. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  10. 2026-10-20 17:36 UTCEG score recompute
  11. 2026-10-20 17:36 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  12. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  13. 2026-10-19 18:14 UTCEG score recompute
  14. 2026-10-19 18:14 UTCVendor advisory
  15. 2026-10-19 18:13 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  16. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  17. 2026-10-18 18:55 UTCEG score recompute
  18. 2026-10-18 18:55 UTCVendor advisory
  19. 2026-10-18 18:55 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  20. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  21. 2026-10-18 03:10 UTCEG score recompute
  22. 2026-10-17 19:41 UTCEG score recompute
  23. 2026-10-17 19:41 UTCVendor advisory
  24. 2026-10-17 19:40 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  25. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  26. 2026-10-16 20:26 UTCEG score recompute
  27. 2026-10-16 20:26 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  28. 2026-10-16 19:34 UTCEG score recompute
  29. 2026-10-16 19:34 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  30. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  31. 2026-10-16 13:11 UTCEG score recompute
  32. 2026-10-16 13:10 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  33. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  34. 2026-10-15 13:56 UTCEG score recompute
  35. 2026-10-15 13:56 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  36. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  37. 2026-10-14 08:48 UTCEG score recompute
  38. 2026-10-14 08:48 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  39. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  40. 2026-10-13 04:36 UTCEG score recompute
  41. 2026-10-13 04:36 UTCVendor advisory
  42. 2026-10-13 04:36 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  43. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  44. 2026-10-12 14:57 UTCEG score recompute
  45. 2026-10-12 05:23 UTCVendor advisory
  46. 2026-10-12 05:22 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  47. 2026-10-11 19:21 UTCEG score recompute
  48. 2026-10-11 16:37 UTCEG score recompute
  49. 2026-10-11 13:55 UTCEG score recompute
  50. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  51. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  52. 2026-10-10 14:21 UTCVendor advisory
  53. 2026-10-10 14:21 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  54. 2026-10-10 09:56 UTCVendor advisory
  55. 2026-10-10 09:56 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  56. 2026-10-10 05:37 UTCVendor advisory
  57. 2026-10-10 05:37 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  58. 2026-10-10 01:10 UTCEG score recompute
  59. 2026-10-10 01:10 UTCVendor advisory
  60. 2026-10-10 01:10 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  61. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  62. 2026-10-09 07:04 UTCVendor advisory
  63. 2026-10-09 07:04 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  64. 2026-10-09 02:45 UTCVendor advisory
  65. 2026-10-09 02:45 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  66. 2026-10-08 09:34 UTCVendor advisory
  67. 2026-10-08 09:34 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  68. 2026-10-08 05:16 UTCVendor advisory
  69. 2026-10-08 05:16 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  70. 2026-10-08 00:57 UTCEG score recompute
  71. 2026-10-08 00:57 UTCVendor advisory
  72. 2026-10-08 00:56 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3
  73. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  74. 2026-10-07 09:51 UTCVendor advisory
  75. 2026-10-07 09:51 UTCGHSA enrichmentGHSA-q4fh-xh4r-x3xp · GitHub severity CRITICAL · GitHub CVSS 9.3

Frequently asked(5)

What is CVE-2026-80684?
CVE-2026-80684 is a critical-severity vulnerability; its CVE record was published on August 28, 2026. In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pci: Fix NULL dereference on AIBV allocation failure The airqivcreate() can return NULL on failure, but the return value was never checked. If it fails, zdev->aibv will be NULL and fail when dereferenced in…
When was the CVE record for CVE-2026-80684 published?
The CVE record for CVE-2026-80684 was published on August 28, 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-2026-80684 actively exploited?
CVE-2026-80684 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (9th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-80684?
CVE-2026-80684 has a CVSS base score of 9.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-80684?
A fix for CVE-2026-80684 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-80684 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-80684

Explore →

Is Your Infrastructure Affected by CVE-2026-80684?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.