CVE-2026-43256

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-06. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: 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:

media: qcom: camss: vfe: Fix out-of-bounds access in vfe_isr_reg_update()

vfe_isr() iterates using MSM_VFE_IMAGE_MASTERS_NUM(7) as the loop bound and passes the index to vfe_isr_reg_update(). However, vfe->line[] array is defined with VFE_LINE_NUM_MAX(4):

struct vfe_line line[VFE_LINE_NUM_MAX];

When index is 4, 5, 6, the access to vfe->line[line_id] exceeds the array bounds and resulting in out-of-bounds memory access.

Fix this by using separate loops for output lines and write masters.

CVSS v3
7.8
EG Score
7.8(medium)
EPSS
2.9%
KEV
Not listed

Published

May 6, 2026

Last Modified

May 11, 2026

Advisory Details (6)

Auto-updated May 11, 2026
No patch confirmed yet.
generic

media: qcom: camss: vfe: Fix out-of-bounds access in vfe_isr_reg_update() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/fade67c88870f497a13ed450ba01f7236c92dd9b
generic

media: qcom: camss: vfe: Fix out-of-bounds access in vfe_isr_reg_update() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e7a38ecda2498e7ce998793ac2a46ca47317635d
generic

media: qcom: camss: vfe: Fix out-of-bounds access in vfe_isr_reg_update() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e6cbf765686fb6c1d8f2530b3daf6c66efc92f5d
generic

media: qcom: camss: vfe: Fix out-of-bounds access in vfe_isr_reg_update() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d965919af524e68cb2ab1a685872050ad2ee933d
generic

media: qcom: camss: vfe: Fix out-of-bounds access in vfe_isr_reg_update() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1b103307df6d461a0731be25aca69ad0335b0933
generic

media: qcom: camss: vfe: Fix out-of-bounds access in vfe_isr_reg_update() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0c074e80921fd18984b75836730d76c768c84f65

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 30× 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.

Showing the most recent 100 of 126 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-43256?
CVE-2026-43256 is a high vulnerability published on May 6, 2026. In the Linux kernel, the following vulnerability has been resolved: media: qcom: camss: vfe: Fix out-of-bounds access in vfeisrreg_update() vfeisr() iterates using MSMVFEIMAGEMASTERS_NUM(7) as the loop bound and passes the index to vfeisrreg_update(). However, vfe->line[] array is defined with…
When was CVE-2026-43256 disclosed?
CVE-2026-43256 was first published in the National Vulnerability Database on May 6, 2026, with the most recent update on May 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43256 actively exploited?
CVE-2026-43256 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-43256?
CVE-2026-43256 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-43256?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43256, 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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