CVE-2026-53314

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-06-26. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

A fix is available — apply it.

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

padata: Put CPU offline callback in ONLINE section to allow failure

syzbot reported the following warning:

DEAD callback error for CPU1 WARNING: kernel/cpu.c:1463 at _cpu_down+0x759/0x1020 kernel/cpu.c:1463, CPU#0: syz.0.1960/14614

at commit 4ae12d8bd9a8 ("Merge tag 'kbuild-fixes-7.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux") which tglx traced to padata_cpu_dead() given it's the only sub-CPUHP_TEARDOWN_CPU callback that returns an error.

Failure isn't allowed in hotplug states before CPUHP_TEARDOWN_CPU so move the CPU offline callback to the ONLINE section where failure is possible.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity55% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

June 26, 2026

Last Modified

July 6, 2026

Advisory Details (6)

Auto-updated Jul 9, 2026
No patch confirmed yet.
generic

padata: Put CPU offline callback in ONLINE section to allow failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c8c4a2972f83c8b68ff03b43cecdb898939ff851
generic

padata: Put CPU offline callback in ONLINE section to allow failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a6d44f477000c6352de6b05e9e276e62083e5fbf
generic

padata: Put CPU offline callback in ONLINE section to allow failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9afe53f14a2aae8c4beb30e5ea51641a34f1a3d3
generic

padata: Put CPU offline callback in ONLINE section to allow failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/65dae8b34f0810f3fa9f77c4c63650cd20820693
generic

padata: Put CPU offline callback in ONLINE section to allow failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5a9f29a3e076b637d2234093e57989cf755ded5b
generic

padata: Put CPU offline callback in ONLINE section to allow failure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3e6c08dd97dcd22a00aee469e0adfa819071d80e

Vendor Advisories for CVE-2026-53314(2)

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

Patch Availability(22)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-09-06ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-09-06ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-09-06ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-09-06ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-09-06ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-09-06ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-09-06ubuntu
ubuntulinux-tools-lowlatency-hwe-22.04-edge (6.8.0-136.136.2~22.04.1) @ jammy2026-09-06ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-09-06ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-09-06ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-09-06ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-09-06ubuntu
ubuntulinux-tools-azure-edge (6.8.0-1063.71~22.04.1) @ jammy2026-09-06ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-09-06ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-09-06ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-09-06ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-09-06ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-09-06ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-09-06ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16~24.04.1) @ noble2026-09-06ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-09-06ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-09-06ubuntu

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 ... 6.12.94-1~bpo12+1 (27 versions)6.12.94-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (140 versions)7.0.10-1—

Additional Vendor Advisories

(22)

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 7× in last 7d / 66× 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 195 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-53314?
CVE-2026-53314 is a medium vulnerability published on June 26, 2026. In the Linux kernel, the following vulnerability has been resolved: padata: Put CPU offline callback in ONLINE section to allow failure syzbot reported the following warning: DEAD callback error for CPU1 WARNING: kernel/cpu.c:1463 at cpudown+0x759/0x1020 kernel/cpu.c:1463, CPU#0: syz.0.1960/14614…
When was CVE-2026-53314 disclosed?
CVE-2026-53314 was first published in the National Vulnerability Database on June 26, 2026, with the most recent update on July 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53314 actively exploited?
CVE-2026-53314 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 98.0% of all scored CVEs.
What is the CVSS score of CVE-2026-53314?
CVE-2026-53314 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-53314?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53314, 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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