CVE-2026-46185

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-28. the CNA's CVSS baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
9.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.1Exploit: NoneExposed: 0

A fix is available — apply it.

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

smb/client: fix out-of-bounds read in symlink_data()

Since smb2_check_message() returns success without length validation for the symlink error response, in symlink_data() it is possible for iov->iov_len to be smaller than sizeof(struct smb2_err_rsp). If the buffer only contains the base SMB2 header (64 bytes), accessing err->ErrorContextCount (at offset 66) or err->ByteCount later in symlink_data() will cause an out-of-bounds read.

CVSS v3
9.1
EG Score
9.1(medium)
EPSS
40.2%
KEV
Not listed

Published

May 28, 2026

Last Modified

June 14, 2026

Advisory Details (5)

Auto-updated May 31, 2026
No patch confirmed yet.
generic

smb/client: fix out-of-bounds read in symlink_data() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ef6495d4df6e7af8f3de67e65150881c880f696c
generic

smb/client: fix out-of-bounds read in symlink_data() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d62b8d236fab503c6fec1d3e9a38bea71feaca20
generic

smb/client: fix out-of-bounds read in symlink_data() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b9561402489d41149f63e001a74384863b7b30a6
generic

smb/client: fix out-of-bounds read in symlink_data() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b8c8a704f0bc133deb171f6aeb6f3a684203e212
generic

smb/client: fix out-of-bounds read in symlink_data() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/15dc0a4de743a1aaa7b859b3aea79f08c695396c

Vendor Advisories for CVE-2026-46185(2)

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 0× in last 7d / 0× 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. 2026-07-16 10:20 UTCEG score recompute
  2. 2026-07-16 10:20 UTCVendor advisory
  3. 2026-07-16 10:20 UTCGHSA enrichment
  4. 2026-07-15 16:57 UTCEPSS rescore
  5. 2026-07-15 02:00 UTCEPSS rescore
  6. 2026-07-13 22:30 UTCEPSS rescore
  7. 2026-07-13 06:13 UTCEPSS rescore
  8. 2026-07-12 05:46 UTCEPSS rescore
  9. 2026-07-12 01:37 UTCEG score recompute
  10. 2026-07-12 01:37 UTCVendor advisory
  11. 2026-07-12 01:37 UTCGHSA enrichment
  12. 2026-07-11 21:15 UTCEG score recompute
  13. 2026-07-11 21:15 UTCVendor advisory
  14. 2026-07-11 21:15 UTCGHSA enrichment
  15. 2026-07-11 08:27 UTCEPSS rescore
  16. 2026-07-09 19:10 UTCEPSS rescore
  17. 2026-07-08 22:48 UTCEG score recompute
  18. 2026-07-08 22:48 UTCVendor advisory
  19. 2026-07-08 22:47 UTCGHSA enrichment
  20. 2026-07-08 18:20 UTCEG score recompute
  21. 2026-07-08 18:20 UTCVendor advisory
  22. 2026-07-08 18:20 UTCGHSA enrichment
  23. 2026-07-08 15:16 UTCEPSS rescore
  24. 2026-07-07 13:46 UTCEPSS rescore
  25. 2026-07-06 16:27 UTCEPSS rescore
Show 75 more
  1. 2026-07-06 02:23 UTCEPSS rescore
  2. 2026-07-05 02:30 UTCEPSS rescore
  3. 2026-07-04 06:31 UTCEPSS rescore
  4. 2026-07-02 23:28 UTCEG score recompute
  5. 2026-07-02 23:28 UTCVendor advisory
  6. 2026-07-02 23:28 UTCGHSA enrichment
  7. 2026-07-02 14:14 UTCEG score recompute
  8. 2026-07-02 14:14 UTCVendor advisory
  9. 2026-07-02 14:14 UTCGHSA enrichment
  10. 2026-07-01 20:28 UTCEG score recompute
  11. 2026-07-01 20:28 UTCVendor advisory
  12. 2026-07-01 20:28 UTCGHSA enrichment
  13. 2026-07-01 15:07 UTCEPSS rescore
  14. 2026-07-01 13:58 UTCEG score recompute
  15. 2026-07-01 13:58 UTCVendor advisory
  16. 2026-07-01 13:57 UTCGHSA enrichment
  17. 2026-07-01 09:13 UTCEG score recompute
  18. 2026-07-01 09:13 UTCVendor advisory
  19. 2026-07-01 09:13 UTCGHSA enrichment
  20. 2026-07-01 03:07 UTCEG score recompute
  21. 2026-07-01 03:07 UTCVendor advisory
  22. 2026-07-01 03:07 UTCGHSA enrichment
  23. 2026-06-30 23:22 UTCEPSS rescore
  24. 2026-06-30 06:15 UTCEG score recompute
  25. 2026-06-30 06:15 UTCVendor advisory
  26. 2026-06-30 06:15 UTCGHSA enrichment
  27. 2026-06-30 01:59 UTCEG score recompute
  28. 2026-06-30 01:59 UTCVendor advisory
  29. 2026-06-30 01:59 UTCGHSA enrichment
  30. 2026-06-29 19:43 UTCEG score recompute
  31. 2026-06-29 19:43 UTCVendor advisory
  32. 2026-06-29 19:43 UTCGHSA enrichment
  33. 2026-06-29 14:06 UTCEPSS rescore
  34. 2026-06-29 14:06 UTCEPSS rescore
  35. 2026-06-29 13:44 UTCEG score recompute
  36. 2026-06-29 13:44 UTCVendor advisory
  37. 2026-06-29 13:44 UTCGHSA enrichment
  38. 2026-06-29 01:00 UTCEG score recompute
  39. 2026-06-29 01:00 UTCVendor advisory
  40. 2026-06-29 01:00 UTCGHSA enrichment
  41. 2026-06-28 20:43 UTCEG score recompute
  42. 2026-06-28 20:43 UTCVendor advisory
  43. 2026-06-28 20:43 UTCGHSA enrichment
  44. 2026-06-28 16:27 UTCEG score recompute
  45. 2026-06-28 16:27 UTCVendor advisory
  46. 2026-06-28 16:27 UTCGHSA enrichment
  47. 2026-06-28 14:07 UTCEPSS rescore
  48. 2026-06-28 11:48 UTCEG score recompute
  49. 2026-06-28 11:48 UTCVendor advisory
  50. 2026-06-28 11:48 UTCGHSA enrichment
  51. 2026-06-28 07:32 UTCEG score recompute
  52. 2026-06-28 07:32 UTCVendor advisory
  53. 2026-06-28 07:32 UTCGHSA enrichment
  54. 2026-06-28 04:56 UTCEPSS rescore
  55. 2026-06-28 04:56 UTCEPSS rescore
  56. 2026-06-28 03:16 UTCEG score recompute
  57. 2026-06-28 03:16 UTCVendor advisory
  58. 2026-06-28 03:16 UTCGHSA enrichment
  59. 2026-06-27 23:00 UTCEG score recompute
  60. 2026-06-27 23:00 UTCVendor advisory
  61. 2026-06-27 23:00 UTCGHSA enrichment
  62. 2026-06-27 18:43 UTCEG score recompute
  63. 2026-06-27 18:43 UTCVendor advisory
  64. 2026-06-27 18:43 UTCGHSA enrichment
  65. 2026-06-27 14:27 UTCEG score recompute
  66. 2026-06-27 14:27 UTCVendor advisory
  67. 2026-06-27 14:27 UTCGHSA enrichment
  68. 2026-06-27 10:11 UTCEG score recompute
  69. 2026-06-27 10:11 UTCVendor advisory
  70. 2026-06-27 10:11 UTCGHSA enrichment
  71. 2026-06-27 05:55 UTCEG score recompute
  72. 2026-06-27 05:55 UTCVendor advisory
  73. 2026-06-27 05:55 UTCGHSA enrichment
  74. 2026-06-27 03:08 UTCEPSS rescore
  75. 2026-06-27 01:37 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-46185?
CVE-2026-46185 is a critical vulnerability published on May 28, 2026. In the Linux kernel, the following vulnerability has been resolved: smb/client: fix out-of-bounds read in symlink_data() Since smb2checkmessage() returns success without length validation for the symlink error response, in symlink_data() it is possible for iov->iovlen to be smaller than…
When was CVE-2026-46185 disclosed?
CVE-2026-46185 was first published in the National Vulnerability Database on May 28, 2026, with the most recent update on June 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46185 actively exploited?
CVE-2026-46185 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 40.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-46185?
CVE-2026-46185 has a CVSS v4.0 base score of 9.1 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-46185?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46185, 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.

Dependency Blast Radius

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