CVE-2026-43061

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-05-05. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.5Exploit: NoneExposed: 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:

serial: 8250: Fix TX deadlock when using DMA

dmaengine_terminate_async does not guarantee that the __dma_tx_complete callback will run. The callback is currently the only place where dma->tx_running gets cleared. If the transaction is canceled and the callback never runs, then dma->tx_running will never get cleared and we will never schedule new TX DMA transactions again.

This change makes it so we clear dma->tx_running after we terminate the DMA transaction. This is "safe" because serial8250_tx_dma_flush is holding the UART port lock. The first thing the callback does is also grab the UART port lock, so access to dma->tx_running is serialized.

CVSS v3
5.5
EG Score
5.5(medium)
EPSS
0.6%
KEV
Not listed

Published

May 5, 2026

Last Modified

May 29, 2026

References (8)

Vendor Advisories for CVE-2026-43061(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 24× 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. 2026-07-15 16:57 UTCEPSS rescore
  2. 2026-07-15 02:00 UTCEPSS rescore
  3. 2026-07-13 22:30 UTCEPSS rescore
  4. 2026-07-12 05:46 UTCEPSS rescore
  5. 2026-07-11 08:27 UTCEPSS rescore
  6. 2026-07-09 19:10 UTCEPSS rescore
  7. 2026-07-08 15:16 UTCEPSS rescore
  8. 2026-07-07 13:46 UTCEPSS rescore
  9. 2026-07-06 16:27 UTCEPSS rescore
  10. 2026-07-04 06:31 UTCEPSS rescore
  11. 2026-07-01 15:06 UTCEPSS rescore
  12. 2026-06-30 23:22 UTCEPSS rescore
  13. 2026-06-29 14:06 UTCEPSS rescore
  14. 2026-06-28 14:07 UTCEPSS rescore
  15. 2026-06-28 04:56 UTCEPSS rescore
  16. 2026-06-25 13:49 UTCEPSS rescore
  17. 2026-06-25 13:49 UTCEPSS rescore
  18. 2026-06-24 14:05 UTCEPSS rescore
  19. 2026-06-23 21:33 UTCEPSS rescore
  20. 2026-06-21 01:59 UTCEPSS rescore
  21. 2026-06-19 19:25 UTCEPSS rescore
  22. 2026-06-18 17:52 UTCEPSS rescore
  23. 2026-06-18 17:52 UTCEPSS rescore
  24. 2026-06-17 17:53 UTCEPSS rescore
  25. 2026-06-15 17:49 UTCEPSS rescore
Show 63 more
  1. 2026-06-14 07:52 UTCEG score recompute
  2. 2026-06-14 07:52 UTCGHSA enrichment
  3. 2026-06-13 23:00 UTCEPSS rescore
  4. 2026-06-12 23:12 UTCEPSS rescore
  5. 2026-06-12 23:12 UTCEPSS rescore
  6. 2026-06-12 03:37 UTCEG score recompute
  7. 2026-06-12 03:37 UTCGHSA enrichment
  8. 2026-06-11 14:00 UTCEPSS rescore
  9. 2026-06-11 02:06 UTCEG score recompute
  10. 2026-06-11 02:06 UTCGHSA enrichment
  11. 2026-06-10 22:18 UTCEPSS rescore
  12. 2026-06-10 13:22 UTCEPSS rescore
  13. 2026-06-10 13:22 UTCEPSS rescore
  14. 2026-06-09 23:53 UTCEG score recompute
  15. 2026-06-09 23:53 UTCGHSA enrichment
  16. 2026-06-08 22:22 UTCEG score recompute
  17. 2026-06-08 22:22 UTCGHSA enrichment
  18. 2026-06-08 14:17 UTCEPSS rescore
  19. 2026-06-08 14:17 UTCEPSS rescore
  20. 2026-06-07 18:53 UTCEG score recompute
  21. 2026-06-07 18:53 UTCGHSA enrichment
  22. 2026-06-07 15:25 UTCEPSS rescore
  23. 2026-06-07 15:25 UTCEPSS rescore
  24. 2026-06-06 17:21 UTCEG score recompute
  25. 2026-06-06 17:21 UTCGHSA enrichment
  26. 2026-06-06 13:47 UTCEPSS rescore
  27. 2026-06-06 13:47 UTCEPSS rescore
  28. 2026-06-05 22:47 UTCEPSS rescore
  29. 2026-06-05 15:51 UTCEG score recompute
  30. 2026-06-05 15:51 UTCGHSA enrichment
  31. 2026-06-05 06:10 UTCEPSS rescore
  32. 2026-06-05 06:10 UTCEPSS rescore
  33. 2026-06-04 14:21 UTCEG score recompute
  34. 2026-06-04 14:21 UTCGHSA enrichment
  35. 2026-06-04 13:12 UTCEPSS rescore
  36. 2026-06-04 13:12 UTCEPSS rescore
  37. 2026-06-03 12:51 UTCEG score recompute
  38. 2026-06-03 12:51 UTCGHSA enrichment
  39. 2026-06-02 20:13 UTCEPSS rescore
  40. 2026-06-02 11:20 UTCEG score recompute
  41. 2026-06-02 11:20 UTCGHSA enrichment
  42. 2026-06-01 13:52 UTCEPSS rescore
  43. 2026-06-01 13:52 UTCEPSS rescore
  44. 2026-06-01 09:50 UTCEG score recompute▲ 5.50
  45. 2026-06-01 09:50 UTCGHSA enrichment
  46. 2026-05-31 22:30 UTCEPSS rescore
  47. 2026-05-31 22:30 UTCEPSS rescore
  48. 2026-05-31 00:16 UTCEPSS rescore
  49. 2026-05-31 00:16 UTCEPSS rescore
  50. 2026-05-29 13:44 UTCEPSS rescore
  51. 2026-05-29 13:44 UTCEPSS rescore
  52. 2026-05-28 13:44 UTCEPSS rescore
  53. 2026-05-28 13:44 UTCEPSS rescore
  54. 2026-05-27 13:40 UTCEPSS rescore
  55. 2026-05-27 13:40 UTCEPSS rescore
  56. 2026-05-26 13:44 UTCEPSS rescore
  57. 2026-05-26 07:18 UTCEPSS rescore
  58. 2026-05-20 22:38 UTCEPSS rescore
  59. 2026-05-20 22:38 UTCEPSS rescore
  60. 2026-05-20 14:27 UTCEG score recompute
  61. 2026-05-20 14:27 UTCGHSA enrichment
  62. 2026-05-20 11:22 UTCEPSS rescore
  63. 2026-05-20 11:22 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-43061?
CVE-2026-43061 is a medium vulnerability published on May 5, 2026. In the Linux kernel, the following vulnerability has been resolved: serial: 8250: Fix TX deadlock when using DMA dmaengineterminateasync does not guarantee that the dmatxcomplete callback will run. The callback is currently the only place where dma->tx_running gets cleared. If the transaction is…
When was CVE-2026-43061 disclosed?
CVE-2026-43061 was first published in the National Vulnerability Database on May 5, 2026, with the most recent update on May 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43061 actively exploited?
CVE-2026-43061 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-43061?
CVE-2026-43061 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-43061?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43061, 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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