CVE-2026-46024

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-05-27. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

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

libceph: Prevent potential null-ptr-deref in ceph_handle_auth_reply()

If a message of type CEPH_MSG_AUTH_REPLY contains a zero value for both protocol and result, this is currently not treated as an error. In case of ac->negotiating == true and ac->protocol > 0, this leads to setting ac->protocol = 0 and ac->ops = NULL. Thereafter, the check for ac->protocol != protocol returns false, and init_protocol() is not called. Subsequently, ac->ops->handle_reply() is called, which leads to a null pointer dereference, because ac->ops is still NULL.

This patch changes the check for ac->protocol != protocol to !ac->protocol, as this also includes the case when the protocol was set to zero in the message. This causes the message to be treated as containing a bad auth protocol.

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
38.8%
KEV
Not listed

Published

May 27, 2026

Last Modified

June 16, 2026

Advisory Details (7)

Auto-updated Jun 6, 2026
No patch confirmed yet.
generic

libceph: Prevent potential null-ptr-deref in ceph_handle_auth_reply() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f101271fcf55d7eacfefd610b51ec65f46ba8118
generic

libceph: Prevent potential null-ptr-deref in ceph_handle_auth_reply() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9ded62c302c0342efdb5eda3bf6e75720caad0df
generic

libceph: Prevent potential null-ptr-deref in ceph_handle_auth_reply() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/927e4bd5692f2a4901808822981fb2c8d4456548
generic

libceph: Prevent potential null-ptr-deref in ceph_handle_auth_reply() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8f2be7285941a33a9f72579a23b96392f83c758e
generic

libceph: Prevent potential null-ptr-deref in ceph_handle_auth_reply() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5199c125d25aeae8615c4fc31652cc0fe624338e
generic

libceph: Prevent potential null-ptr-deref in ceph_handle_auth_reply() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4b2738b93edad661178340239de657d876b73d3d
generic

libceph: Prevent potential null-ptr-deref in ceph_handle_auth_reply() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/016bc663657366d386993f63eb31072eb45a2b77

Vendor Advisories for CVE-2026-46024(2)

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

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-27.27) @ resolute2026-07-11ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1014.14) @ resolute2026-07-11ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1013.13) @ resolute2026-07-11ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1008.8) @ resolute2026-07-11ubuntu

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.

Weakness Classification(1)

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

Additional Vendor Advisories

(4)

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 10× in last 7d / 80× 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 180 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 23:50 UTCEG score recompute
  7. 2026-07-11 23:50 UTCVendor advisory
  8. 2026-07-11 23:50 UTCGHSA enrichment
  9. 2026-07-11 08:27 UTCEPSS rescore
  10. 2026-07-09 19:10 UTCEPSS rescore
  11. 2026-07-08 23:59 UTCEG score recompute
  12. 2026-07-08 23:59 UTCVendor advisory
  13. 2026-07-08 23:58 UTCGHSA enrichment
  14. 2026-07-08 15:16 UTCEPSS rescore
  15. 2026-07-07 13:46 UTCEPSS rescore
  16. 2026-07-06 16:27 UTCEPSS rescore
  17. 2026-07-06 02:23 UTCEPSS rescore
  18. 2026-07-05 02:30 UTCEPSS rescore
  19. 2026-07-04 06:31 UTCEPSS rescore
  20. 2026-07-01 15:07 UTCEPSS rescore
  21. 2026-07-01 10:27 UTCEG score recompute
  22. 2026-07-01 10:27 UTCVendor advisory
  23. 2026-07-01 10:27 UTCGHSA enrichment
  24. 2026-06-30 23:22 UTCEPSS rescore
  25. 2026-06-30 03:25 UTCEG score recompute
Show 75 more
  1. 2026-06-30 03:25 UTCVendor advisory
  2. 2026-06-30 03:25 UTCGHSA enrichment
  3. 2026-06-29 14:22 UTCEG score recompute
  4. 2026-06-29 14:22 UTCVendor advisory
  5. 2026-06-29 14:22 UTCGHSA enrichment
  6. 2026-06-29 14:06 UTCEPSS rescore
  7. 2026-06-29 14:06 UTCEPSS rescore
  8. 2026-06-28 20:59 UTCEG score recompute
  9. 2026-06-28 20:59 UTCVendor advisory
  10. 2026-06-28 20:59 UTCGHSA enrichment
  11. 2026-06-28 14:07 UTCEPSS rescore
  12. 2026-06-28 07:26 UTCEG score recompute
  13. 2026-06-28 07:26 UTCVendor advisory
  14. 2026-06-28 07:26 UTCGHSA enrichment
  15. 2026-06-28 04:56 UTCEPSS rescore
  16. 2026-06-28 04:56 UTCEPSS rescore
  17. 2026-06-27 18:36 UTCEG score recompute
  18. 2026-06-27 18:36 UTCVendor advisory
  19. 2026-06-27 18:36 UTCGHSA enrichment
  20. 2026-06-27 05:59 UTCEG score recompute
  21. 2026-06-27 05:59 UTCVendor advisory
  22. 2026-06-27 05:59 UTCGHSA enrichment
  23. 2026-06-27 03:08 UTCEPSS rescore
  24. 2026-06-26 17:08 UTCEG score recompute
  25. 2026-06-26 17:08 UTCVendor advisory
  26. 2026-06-26 17:08 UTCGHSA enrichment
  27. 2026-06-26 02:33 UTCEG score recompute
  28. 2026-06-26 02:33 UTCVendor advisory
  29. 2026-06-26 02:33 UTCGHSA enrichment
  30. 2026-06-25 13:55 UTCEG score recompute
  31. 2026-06-25 13:55 UTCVendor advisory
  32. 2026-06-25 13:55 UTCGHSA enrichment
  33. 2026-06-25 13:49 UTCEPSS rescore
  34. 2026-06-25 01:18 UTCEG score recompute
  35. 2026-06-25 01:18 UTCVendor advisory
  36. 2026-06-25 01:18 UTCGHSA enrichment
  37. 2026-06-24 14:05 UTCEPSS rescore
  38. 2026-06-23 21:33 UTCEPSS rescore
  39. 2026-06-23 21:33 UTCEPSS rescore
  40. 2026-06-22 14:25 UTCEPSS rescore
  41. 2026-06-22 14:25 UTCEPSS rescore
  42. 2026-06-21 14:56 UTCEPSS rescore
  43. 2026-06-21 14:56 UTCEPSS rescore
  44. 2026-06-21 01:59 UTCEPSS rescore
  45. 2026-06-21 01:59 UTCEPSS rescore
  46. 2026-06-19 19:26 UTCEPSS rescore
  47. 2026-06-19 19:26 UTCEPSS rescore
  48. 2026-06-18 17:52 UTCEPSS rescore
  49. 2026-06-18 17:52 UTCEPSS rescore
  50. 2026-06-17 18:43 UTCEG score recompute
  51. 2026-06-17 18:43 UTCGHSA enrichment
  52. 2026-06-17 17:53 UTCEPSS rescore
  53. 2026-06-17 04:50 UTCEG score recompute
  54. 2026-06-17 04:50 UTCGHSA enrichment
  55. 2026-06-16 17:52 UTCEPSS rescore
  56. 2026-06-16 16:08 UTCEG score recompute
  57. 2026-06-16 16:08 UTCVendor advisory
  58. 2026-06-16 16:07 UTCGHSA enrichment
  59. 2026-06-16 02:08 UTCEG score recompute
  60. 2026-06-16 02:08 UTCVendor advisory
  61. 2026-06-16 02:08 UTCGHSA enrichment
  62. 2026-06-15 17:49 UTCEPSS rescore
  63. 2026-06-15 13:31 UTCEG score recompute
  64. 2026-06-15 13:31 UTCVendor advisory
  65. 2026-06-15 13:31 UTCGHSA enrichment
  66. 2026-06-14 21:51 UTCEG score recompute
  67. 2026-06-14 21:51 UTCVendor advisory
  68. 2026-06-14 21:51 UTCGHSA enrichment
  69. 2026-06-14 09:15 UTCEG score recompute
  70. 2026-06-14 09:15 UTCVendor advisory
  71. 2026-06-14 09:15 UTCGHSA enrichment
  72. 2026-06-13 23:00 UTCEPSS rescore
  73. 2026-06-13 20:39 UTCEG score recompute
  74. 2026-06-13 20:39 UTCGHSA enrichment
  75. 2026-06-13 03:37 UTCEG score recompute

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Frequently asked(5)

What is CVE-2026-46024?
CVE-2026-46024 is a high vulnerability published on May 27, 2026. In the Linux kernel, the following vulnerability has been resolved: libceph: Prevent potential null-ptr-deref in cephhandleauth_reply() If a message of type CEPHMSGAUTH_REPLY contains a zero value for both protocol and result, this is currently not treated as an error. In case of ac->negotiating ==…
When was CVE-2026-46024 disclosed?
CVE-2026-46024 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46024 actively exploited?
CVE-2026-46024 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 38.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-46024?
CVE-2026-46024 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-46024?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46024, 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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