CVE-2026-80691

HIGHPre-NVD 7.57.5
EchelonGraph scoreMEDIUM confidence

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

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-28. A secondary CVSS source baseline 7.5; 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-2026-67426 (ENISA EUVD) · GHSA-mp2w-vvvm-2m46 (GitHub Security Advisories)Source: ENISA EUVD

7.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

scsi: target: iblock: Fix wrong PR ops NULL check for PREEMPT/RELEASE

In the iblock_execute_pr_out() function, PRO_PREEMPT, PRO_PREEMPT_AND_ABORT, and PRO_RELEASE all perform callback capability checks through ops->pr_clear. The error check allows unimplemented hooks to pass through the gate, resulting dereferencing a NULL function pointer.

Check whether the hooks that need to be called are supported.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100

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)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (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 at low or medium mission impact and sooner than that at high.
EPSS PROB
0.4%
EPSS %ILE
38th
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 (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.4% 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; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days 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; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (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; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (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 (5)

Auto-updated Aug 29, 2026
Patch available.
Web page

scsi: target: iblock: Fix wrong PR ops NULL check for PREEMPT/RELEASE - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9c33222bd387312874fbe36ca8002e5c945b9653
Web page

scsi: target: iblock: Fix wrong PR ops NULL check for PREEMPT/RELEASE - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f15bcf9a99b1b2683fcfa005b9b3680b5600581f
Web page

scsi: target: iblock: Fix wrong PR ops NULL check for PREEMPT/RELEASE - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bdd8a1297ef101bb5ac57e53b4fbe5e364afd8b1
Web page

scsi: target: iblock: Fix wrong PR ops NULL check for PREEMPT/RELEASE - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a326b19cfb7775378b50acaa8d836ba44e29b4c2
Web page

scsi: target: iblock: Fix wrong PR ops NULL check for PREEMPT/RELEASE - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3c60a8b4037dc35e365658fcbcb349a5d742ff49

Vendor Advisories for CVE-2026-80691(2)

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

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
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 11× in last 7d / 89× 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 264 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 164 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 0.4% · 38th 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-mp2w-vvvm-2m46 · GitHub severity HIGH · GitHub CVSS 7.5
  5. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  6. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  7. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  8. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.4% · 38th percentile
  9. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  10. 2026-10-25 13:59 UTCEG score recompute
  11. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  12. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  13. 2026-10-23 16:23 UTCEG score recompute
  14. 2026-10-23 16:23 UTCGHSA enrichmentGHSA-mp2w-vvvm-2m46 · GitHub severity HIGH · GitHub CVSS 7.5
  15. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  16. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  17. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  18. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  19. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  20. 2026-10-18 03:10 UTCEG score recompute
  21. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  22. 2026-10-16 20:31 UTCEG score recompute
  23. 2026-10-16 20:31 UTCGHSA enrichmentGHSA-mp2w-vvvm-2m46 · GitHub severity HIGH · GitHub CVSS 7.5
  24. 2026-10-16 19:36 UTCEG score recompute
  25. 2026-10-16 19:36 UTCGHSA enrichmentGHSA-mp2w-vvvm-2m46 · GitHub severity HIGH · GitHub CVSS 7.5
Show 75 more
  1. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  2. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  3. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  4. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  5. 2026-10-13 06:26 UTCEG score recompute
  6. 2026-10-13 06:26 UTCVendor advisory
  7. 2026-10-13 06:26 UTCGHSA enrichmentGHSA-mp2w-vvvm-2m46 · GitHub severity HIGH · GitHub CVSS 7.5
  8. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  9. 2026-10-12 14:57 UTCEG score recompute
  10. 2026-10-11 19:21 UTCEG score recompute
  11. 2026-10-11 16:37 UTCEG score recompute
  12. 2026-10-11 13:55 UTCEG score recompute
  13. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  14. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  15. 2026-10-10 12:32 UTCVendor advisory
  16. 2026-10-10 12:32 UTCGHSA enrichmentGHSA-mp2w-vvvm-2m46 · GitHub severity HIGH · GitHub CVSS 7.5
  17. 2026-10-10 01:09 UTCEG score recompute
  18. 2026-10-10 01:09 UTCVendor advisory
  19. 2026-10-10 01:08 UTCGHSA enrichmentGHSA-mp2w-vvvm-2m46 · GitHub severity HIGH · GitHub CVSS 7.5
  20. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  21. 2026-10-09 02:45 UTCEG score recompute
  22. 2026-10-09 02:45 UTCVendor advisory
  23. 2026-10-09 02:45 UTCGHSA enrichmentGHSA-mp2w-vvvm-2m46 · GitHub severity HIGH · GitHub CVSS 7.5
  24. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  25. 2026-10-08 00:57 UTCEG score recompute
  26. 2026-10-08 00:57 UTCVendor advisory
  27. 2026-10-08 00:56 UTCGHSA enrichmentGHSA-mp2w-vvvm-2m46 · GitHub severity HIGH · GitHub CVSS 7.5
  28. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  29. 2026-10-07 06:14 UTCVendor advisory
  30. 2026-10-07 06:14 UTCGHSA enrichmentGHSA-mp2w-vvvm-2m46 · GitHub severity HIGH · GitHub CVSS 7.5
  31. 2026-10-06 18:51 UTCEG score recompute
  32. 2026-10-06 18:51 UTCVendor advisory
  33. 2026-10-06 18:51 UTCGHSA enrichmentGHSA-mp2w-vvvm-2m46 · GitHub severity HIGH · GitHub CVSS 7.5
  34. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  35. 2026-10-06 07:28 UTCEG score recompute
  36. 2026-10-06 07:28 UTCVendor advisory
  37. 2026-10-06 07:28 UTCGHSA enrichmentGHSA-mp2w-vvvm-2m46 · GitHub severity HIGH · GitHub CVSS 7.5
  38. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  39. 2026-10-05 16:50 UTCVendor advisory
  40. 2026-10-05 16:50 UTCGHSA enrichmentGHSA-mp2w-vvvm-2m46 · GitHub severity HIGH · GitHub CVSS 7.5
  41. 2026-10-05 03:44 UTCEG score recompute
  42. 2026-10-05 03:44 UTCVendor advisory
  43. 2026-10-05 03:44 UTCGHSA enrichmentGHSA-mp2w-vvvm-2m46 · GitHub severity HIGH · GitHub CVSS 7.5
  44. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  45. 2026-10-04 16:21 UTCVendor advisory
  46. 2026-10-04 16:21 UTCGHSA enrichmentGHSA-mp2w-vvvm-2m46 · GitHub severity HIGH · GitHub CVSS 7.5
  47. 2026-10-04 04:59 UTCVendor advisory
  48. 2026-10-04 04:58 UTCGHSA enrichmentGHSA-mp2w-vvvm-2m46 · GitHub severity HIGH · GitHub CVSS 7.5
  49. 2026-10-03 17:36 UTCEG score recompute
  50. 2026-10-03 17:36 UTCVendor advisory
  51. 2026-10-03 17:36 UTCGHSA enrichmentGHSA-mp2w-vvvm-2m46 · GitHub severity HIGH · GitHub CVSS 7.5
  52. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  53. 2026-10-03 06:13 UTCVendor advisory
  54. 2026-10-03 06:13 UTCGHSA enrichmentGHSA-mp2w-vvvm-2m46 · GitHub severity HIGH · GitHub CVSS 7.5
  55. 2026-10-02 18:50 UTCEG score recompute
  56. 2026-10-02 18:50 UTCVendor advisory
  57. 2026-10-02 18:50 UTCGHSA enrichmentGHSA-mp2w-vvvm-2m46 · GitHub severity HIGH · GitHub CVSS 7.5
  58. 2026-10-02 17:57 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  59. 2026-10-02 07:12 UTCEG score recompute
  60. 2026-10-02 07:12 UTCVendor advisory
  61. 2026-10-02 07:12 UTCGHSA enrichmentGHSA-mp2w-vvvm-2m46 · GitHub severity HIGH · GitHub CVSS 7.5
  62. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  63. 2026-10-01 19:49 UTCVendor advisory
  64. 2026-10-01 19:49 UTCGHSA enrichmentGHSA-mp2w-vvvm-2m46 · GitHub severity HIGH · GitHub CVSS 7.5
  65. 2026-10-01 07:13 UTCVendor advisory
  66. 2026-10-01 07:13 UTCGHSA enrichmentGHSA-mp2w-vvvm-2m46 · GitHub severity HIGH · GitHub CVSS 7.5
  67. 2026-09-30 19:50 UTCEG score recompute
  68. 2026-09-30 19:50 UTCVendor advisory
  69. 2026-09-30 19:50 UTCGHSA enrichmentGHSA-mp2w-vvvm-2m46 · GitHub severity HIGH · GitHub CVSS 7.5
  70. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  71. 2026-09-30 03:54 UTCEG score recompute
  72. 2026-09-30 03:54 UTCVendor advisory
  73. 2026-09-30 03:54 UTCGHSA enrichmentGHSA-mp2w-vvvm-2m46 · GitHub severity HIGH · GitHub CVSS 7.5
  74. 2026-09-29 08:32 UTCEG score recompute
  75. 2026-09-29 08:32 UTCVendor advisory

Frequently asked(5)

What is CVE-2026-80691?
CVE-2026-80691 is a high-severity vulnerability; its CVE record was published on August 28, 2026. In the Linux kernel, the following vulnerability has been resolved: scsi: target: iblock: Fix wrong PR ops NULL check for PREEMPT/RELEASE In the iblockexecuteprout() function, PROPREEMPT, PROPREEMPTANDABORT, and PRORELEASE all perform callback capability checks through ops->pr_clear. The error…
When was the CVE record for CVE-2026-80691 published?
The CVE record for CVE-2026-80691 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-2026-80691 actively exploited?
CVE-2026-80691 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (38th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-80691?
CVE-2026-80691 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-80691?
A fix for CVE-2026-80691 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-80691 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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