CVE-2026-72141

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-15. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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

i2c: imx: fix locked bus on SMBus block-read of 0 (IRQ)

SMBus 3.1 6.5.7 allows a Block Read byte count of 0, but the interrupt-driven block-read state machine rejects it as -EPROTO. Worse, it returns without a NACK+STOP: the next receive cycle has already started, so the target keeps holding SDA and the bus stays stuck until a power cycle of this i2c controller.

Accept count=0: NACK the in-flight dummy byte (TXAK) and set msg->len to 2 so i2c_imx_isr_read_continue() emits STOP via its normal last-byte path. The dummy byte is discarded; block-read callers only consume buf[0..count-1].

Reading I2DR has likewise already armed the next byte on the count > I2C_SMBUS_BLOCK_MAX error path, so NACK it (TXAK) before aborting with -EPROTO; otherwise the failing transfer's STOP cannot complete and the bus stays held.

The atomic path regressed earlier (v3.16) and is fixed separately; this patch covers only the v6.13 state-machine rework.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
38(Track)
EG Risk 38/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
45%
KEV
Not listed

Published

August 15, 2026

Last Modified

August 17, 2026

Advisory Details (3)

Auto-updated Aug 17, 2026
No patch confirmed yet.
generic

i2c: imx: fix locked bus on SMBus block-read of 0 (IRQ) - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5d3240f42a667e29262aff76fdebfcdac4980626
generic

i2c: imx: fix locked bus on SMBus block-read of 0 (IRQ) - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/56ddfc18ea8f7d77747658892873eb632b2ed530
generic

i2c: imx: fix locked bus on SMBus block-read of 0 (IRQ) - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/07fd9385f0d87dff4b34f355f68adf701080cb24

Vendor Advisories for CVE-2026-72141(1)

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

Data Freshness Timeline

(refreshed 31× in last 7d / 31× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

  1. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 22:10 UTCGHSA enrichment
  3. 2026-08-20 11:09 UTCGHSA enrichment
  4. 2026-08-20 00:11 UTCEG score recompute
  5. 2026-08-20 00:11 UTCGHSA enrichment
  6. 2026-08-19 17:04 UTCEPSS rescore
  7. 2026-08-19 13:12 UTCGHSA enrichment
  8. 2026-08-19 02:14 UTCGHSA enrichment
  9. 2026-08-18 15:16 UTCEG score recompute
  10. 2026-08-18 15:16 UTCGHSA enrichment
  11. 2026-08-18 13:49 UTCEPSS rescore
  12. 2026-08-18 13:49 UTCEPSS rescore
  13. 2026-08-18 04:16 UTCGHSA enrichment
  14. 2026-08-17 17:17 UTCEG score recompute
  15. 2026-08-17 17:16 UTCGHSA enrichment
  16. 2026-08-17 13:47 UTCEPSS rescore
  17. 2026-08-17 06:18 UTCEG score recompute
  18. 2026-08-17 06:18 UTCGHSA enrichment
  19. 2026-08-17 06:00 UTCEG score recompute▲ 7.50
  20. 2026-08-17 06:00 UTCGHSA enrichment
  21. 2026-08-17 05:54 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  22. 2026-08-17 05:33 UTCEG score recompute
  23. 2026-08-17 05:33 UTCGHSA enrichment
  24. 2026-08-17 05:25 UTCMITRE cvelistV5
  25. 2026-08-16 14:56 UTCEPSS rescore
Show 6 more
  1. 2026-08-16 14:56 UTCEPSS rescore
  2. 2026-08-16 02:15 UTCEPSS rescore
  3. 2026-08-15 06:42 UTCGHSA enrichment
  4. 2026-08-15 06:23 UTCNVD update
  5. 2026-08-15 06:11 UTCEG score recompute
  6. 2026-08-15 06:02 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-72141?
CVE-2026-72141 is a high vulnerability published on August 15, 2026. In the Linux kernel, the following vulnerability has been resolved: i2c: imx: fix locked bus on SMBus block-read of 0 (IRQ) SMBus 3.1 6.5.7 allows a Block Read byte count of 0, but the interrupt-driven block-read state machine rejects it as -EPROTO. Worse, it returns without a NACK+STOP: the next…
When was CVE-2026-72141 disclosed?
CVE-2026-72141 was first published in the National Vulnerability Database on August 15, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-72141 actively exploited?
CVE-2026-72141 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 54.6% of all scored CVEs.
What is the CVSS score of CVE-2026-72141?
CVE-2026-72141 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-72141?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72141, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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