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
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.1Exploit: None knownExposed: 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)
EG Risk
46(Track)
EG Risk 46/100SSVC: 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
Severity91% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
42%
KEV
Not listed

Published

May 28, 2026

Last Modified

August 5, 2026

Advisory Details (6)

Auto-updated Aug 29, 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/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
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/2be11faf79e49fb8250a181ff0b4d2b2f084af83

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.

Patch Availability(27)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-oem-6.17 (6.17.0-1028.28) @ noble2026-08-25ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-27.27) @ resolute2026-08-25ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.17.0-40.40) @ questing2026-08-25ubuntu
ubuntulinux-virtual-6.8 (6.8.0-134.134) @ noble2026-08-25ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1013.13) @ resolute2026-08-25ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1057.58~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-lowlatency-hwe-20.04-edge (6.8.0-134.134.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-nvidia-tegra-rt-6.8 (6.8.0-1029.30) @ noble2026-08-25ubuntu
ubuntulinux-tools-nvidia-hwe-24.04 (6.17.0-1026.26) @ noble2026-08-25ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2049.50) @ noble2026-08-25ubuntu
ubuntulinux-tools-realtime-hwe-24.04 (6.17.0-1017.19~24.04.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-raspi-6.8 (6.8.0-1060.64) @ noble2026-08-25ubuntu
ubuntulinux-tools-fips-6.8 (6.8.0-134.134+fips1) @ noble2026-08-25ubuntu
ubuntulinux-virtual-hwe-24.04 (6.17.0-40.40~24.04.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-raspi-6.17 (6.17.0-1021.21) @ questing2026-08-25ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-08-25ubuntu
ubuntulinux-tools-azure-6.17 (6.17.0-1021.21~24.04.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fde-6.17 (6.17.0-1018.18~24.04.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1032.33) @ noble2026-08-25ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1008.8) @ resolute2026-08-25ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-08-25ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1014.14) @ resolute2026-08-25ubuntu
redhatkernel-0:6.12.0-211.49.1.el10_22026-08-20redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux-6.16.1.106-3~deb11u1 ... 6.1.174-1~deb11u1 (20 versions)6.1.176-1~deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (53 versions)6.1.176-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.88-1~bpo12+1 (21 versions)6.12.88-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.7-1~bpo13+1 (133 versions)7.0.7-1—

Weakness Classification(1)

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

Additional Vendor Advisories

(24)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 5× in last 7d / 158× 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 497 total refreshes for this CVE.

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

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 August 5, 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 1% probability of exploitation in the next 30 days, which ranks it in the top 58.2% of all scored CVEs.
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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