CVE-2026-46024

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-05-27. the CNA's CVSS baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 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)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
40%
KEV
Not listed

Published

May 27, 2026

Last Modified

August 5, 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(30)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-08-25ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-08-25ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-08-25ubuntu
ubuntulinux-tools-ibm-edge (5.15.0.1106.110~20.04.1) @ focal2026-08-25ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-08-25ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-08-25ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-08-25ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-08-25ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-08-25ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1117.102) @ jammy2026-08-25ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1104.108) @ jammy2026-08-25ubuntu
ubuntulinux-tools-gcp-edge (5.15.0.1112.122~20.04.1) @ focal2026-08-25ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1014.14) @ resolute2026-08-25ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1013.13) @ resolute2026-08-25ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-08-25ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-08-25ubuntu
ubuntulinux-tools-intel-iotg-5.15 (5.15.0.1107.106) @ jammy2026-08-25ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-08-25ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-27.27) @ resolute2026-08-25ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-08-25ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-08-25ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-08-25ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-08-25ubuntu

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

(5 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 7.2~rc5-1~exp1 (496 versions)——
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 ... 6.12.86-1~bpo12+1 (19 versions)6.12.86-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.4-1~bpo13+1 (131 versions)7.0.4-1—

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 / 87× 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 274 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 05:27 UTCEG score recompute
  11. 2026-08-25 05:27 UTCVendor advisory
  12. 2026-08-25 05:26 UTCGHSA enrichment
  13. 2026-08-23 15:13 UTCEG score recompute
  14. 2026-08-23 15:13 UTCVendor advisory
  15. 2026-08-23 15:12 UTCGHSA enrichment
  16. 2026-08-23 00:19 UTCEPSS rescore
  17. 2026-08-21 23:49 UTCEPSS rescore
  18. 2026-08-21 20:41 UTCVendor advisory
  19. 2026-08-21 20:41 UTCGHSA enrichment
  20. 2026-08-21 01:41 UTCEG score recompute
  21. 2026-08-21 01:41 UTCVendor advisory
  22. 2026-08-21 01:40 UTCGHSA enrichment
  23. 2026-08-20 22:55 UTCEPSS rescore
  24. 2026-08-20 11:29 UTCEG score recompute
  25. 2026-08-20 11:29 UTCVendor advisory
Show 75 more
  1. 2026-08-20 11:29 UTCGHSA enrichment
  2. 2026-08-19 17:04 UTCEPSS rescore
  3. 2026-08-18 13:48 UTCEPSS rescore
  4. 2026-08-17 13:47 UTCEPSS rescore
  5. 2026-08-17 09:18 UTCVendor advisory
  6. 2026-08-17 09:18 UTCGHSA enrichment
  7. 2026-08-16 15:34 UTCEG score recompute
  8. 2026-08-16 15:34 UTCVendor advisory
  9. 2026-08-16 15:34 UTCGHSA enrichment
  10. 2026-08-16 14:56 UTCEPSS rescore
  11. 2026-08-16 02:51 UTCEG score recompute
  12. 2026-08-16 02:51 UTCVendor advisory
  13. 2026-08-16 02:51 UTCGHSA enrichment
  14. 2026-08-16 02:14 UTCEPSS rescore
  15. 2026-08-15 02:56 UTCEG score recompute
  16. 2026-08-15 02:56 UTCVendor advisory
  17. 2026-08-15 02:56 UTCGHSA enrichment
  18. 2026-08-15 01:30 UTCEPSS rescore
  19. 2026-08-14 14:04 UTCVendor advisory
  20. 2026-08-14 14:04 UTCGHSA enrichment
  21. 2026-08-14 01:28 UTCEG score recompute
  22. 2026-08-14 01:28 UTCVendor advisory
  23. 2026-08-14 01:28 UTCGHSA enrichment
  24. 2026-08-13 22:00 UTCEPSS rescore
  25. 2026-08-13 03:27 UTCVendor advisory
  26. 2026-08-13 03:27 UTCGHSA enrichment
  27. 2026-08-12 14:50 UTCEG score recompute
  28. 2026-08-12 14:50 UTCVendor advisory
  29. 2026-08-12 14:50 UTCGHSA enrichment
  30. 2026-08-12 13:51 UTCEPSS rescore
  31. 2026-08-12 02:12 UTCEG score recompute
  32. 2026-08-12 02:12 UTCVendor advisory
  33. 2026-08-12 02:12 UTCGHSA enrichment
  34. 2026-08-11 13:36 UTCVendor advisory
  35. 2026-08-11 13:36 UTCGHSA enrichment
  36. 2026-08-11 00:13 UTCEG score recompute
  37. 2026-08-11 00:13 UTCVendor advisory
  38. 2026-08-11 00:13 UTCGHSA enrichment
  39. 2026-08-11 00:00 UTCEPSS rescore
  40. 2026-08-10 11:27 UTCVendor advisory
  41. 2026-08-10 11:27 UTCGHSA enrichment
  42. 2026-08-09 22:47 UTCEG score recompute
  43. 2026-08-09 22:47 UTCVendor advisory
  44. 2026-08-09 22:47 UTCGHSA enrichment
  45. 2026-08-09 13:46 UTCEPSS rescore
  46. 2026-08-09 10:11 UTCVendor advisory
  47. 2026-08-09 10:11 UTCGHSA enrichment
  48. 2026-08-08 21:35 UTCEG score recompute
  49. 2026-08-08 21:35 UTCVendor advisory
  50. 2026-08-08 21:35 UTCGHSA enrichment
  51. 2026-08-08 16:37 UTCEPSS rescore
  52. 2026-08-08 04:49 UTCEG score recompute
  53. 2026-08-08 04:49 UTCVendor advisory
  54. 2026-08-08 04:49 UTCGHSA enrichment
  55. 2026-08-07 16:13 UTCVendor advisory
  56. 2026-08-07 16:12 UTCGHSA enrichment
  57. 2026-08-07 03:36 UTCVendor advisory
  58. 2026-08-07 03:36 UTCGHSA enrichment
  59. 2026-08-06 14:57 UTCEG score recompute
  60. 2026-08-06 14:57 UTCVendor advisory
  61. 2026-08-06 14:57 UTCGHSA enrichment
  62. 2026-08-06 13:47 UTCEPSS rescore
  63. 2026-08-06 02:19 UTCEG score recompute
  64. 2026-08-06 02:19 UTCVendor advisory
  65. 2026-08-06 02:19 UTCGHSA enrichment
  66. 2026-08-05 19:17 UTCEPSS rescore
  67. 2026-08-05 13:43 UTCEG score recompute
  68. 2026-08-05 13:43 UTCVendor advisory
  69. 2026-08-05 13:42 UTCGHSA enrichment
  70. 2026-08-04 15:10 UTCEPSS rescore
  71. 2026-08-04 10:39 UTCEPSS rescore
  72. 2026-08-04 05:20 UTCVendor advisory
  73. 2026-08-04 05:20 UTCGHSA enrichment
  74. 2026-08-03 16:28 UTCEG score recompute
  75. 2026-08-03 16:28 UTCVendor advisory

Related CVEs(same vendor + same CWE)

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 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-2026-46024 actively exploited?
CVE-2026-46024 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 59.7% of all scored CVEs.
What is the CVSS score of CVE-2026-46024?
CVE-2026-46024 has a CVSS v4.0 base score of 7.5 (CNA self-assessment; NVD's own analysis pending).
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.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-46024

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