CVE-2026-53282

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:

x86/kexec: Push kjump return address even for non-kjump kexec

The version of purgatory code shipped by kexec-tools attempts to look above the top of its stack to find a return address for a kjump, even in a non-kjump kexec.

After the commit in Fixes: the word above the stack might not be there, leading to a fault (which is at least now caught by my exception-handling code in kexec).

That commit fixed things for the actual kjump path, but no longer "gratuitously" pushes the unused return address to the stack in the non-kjump path. Put that *back* in the non-kjump path, to prevent purgatory from crashing when trying to access it.

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 8, 2026

Advisory Details (3)

Auto-updated Jul 8, 2026
No patch confirmed yet.
generic

x86/kexec: Push kjump return address even for non-kjump kexec - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b0bd7a850e1f082560959707dbf57b0402071646
generic

x86/kexec: Push kjump return address even for non-kjump kexec - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7dba9631faa2ee0785e8c2bf0e3d90a05f26dd8c
generic

x86/kexec: Push kjump return address even for non-kjump kexec - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/786a45757dcdf8f2beb9d4a6db605db16c18b2b4

Vendor Advisories for CVE-2026-53282(1)

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

Patch Availability(8)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-09-06ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-09-06ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-09-06ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-09-06ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-09-06ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-09-06ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-09-06ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-09-06ubuntu

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

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

All Vendor Advisories

(8)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 8× 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 178 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. 2026-09-07 16:01 UTCEPSS rescore
  5. 2026-09-06 14:58 UTCEG score recompute
  6. 2026-09-06 14:58 UTCVendor advisory
  7. 2026-09-06 14:58 UTCGHSA enrichment
  8. 2026-09-06 13:47 UTCEPSS rescore
  9. 2026-09-04 05:06 UTCEPSS rescore
  10. 2026-09-02 14:12 UTCEPSS rescore
  11. 2026-09-01 04:40 UTCEPSS rescore
  12. 2026-08-30 19:18 UTCEG score recompute
  13. 2026-08-30 19:18 UTCVendor advisory
  14. 2026-08-30 19:18 UTCGHSA enrichment
  15. 2026-08-30 19:17 UTCEPSS rescore
  16. 2026-08-30 01:22 UTCEPSS rescore
  17. 2026-08-28 21:41 UTCEPSS rescore
  18. 2026-08-27 22:58 UTCEG score recompute
  19. 2026-08-27 22:58 UTCVendor advisory
  20. 2026-08-27 22:58 UTCGHSA enrichment
  21. 2026-08-27 14:25 UTCEPSS rescore
  22. 2026-08-26 14:46 UTCEPSS rescore
  23. 2026-08-25 13:49 UTCEPSS rescore
  24. 2026-08-24 12:50 UTCEG score recompute
  25. 2026-08-24 12:50 UTCVendor advisory
Show 75 more
  1. 2026-08-24 12:50 UTCGHSA enrichment
  2. 2026-08-23 08:31 UTCEG score recompute
  3. 2026-08-23 08:31 UTCVendor advisory
  4. 2026-08-23 08:31 UTCGHSA enrichment
  5. 2026-08-23 00:19 UTCEPSS rescore
  6. 2026-08-22 09:23 UTCEG score recompute
  7. 2026-08-22 09:23 UTCVendor advisory
  8. 2026-08-22 09:23 UTCGHSA enrichment
  9. 2026-08-21 23:49 UTCEPSS rescore
  10. 2026-08-21 05:37 UTCEG score recompute
  11. 2026-08-21 05:37 UTCVendor advisory
  12. 2026-08-21 05:37 UTCGHSA enrichment
  13. 2026-08-20 22:55 UTCEPSS rescore
  14. 2026-08-20 06:41 UTCEG score recompute
  15. 2026-08-20 06:41 UTCVendor advisory
  16. 2026-08-20 06:41 UTCGHSA enrichment
  17. 2026-08-19 17:04 UTCEPSS rescore
  18. 2026-08-18 23:41 UTCEG score recompute
  19. 2026-08-18 23:41 UTCVendor advisory
  20. 2026-08-18 23:41 UTCGHSA enrichment
  21. 2026-08-18 13:48 UTCEPSS rescore
  22. 2026-08-17 13:47 UTCEPSS rescore
  23. 2026-08-17 06:10 UTCEG score recompute
  24. 2026-08-17 06:10 UTCVendor advisory
  25. 2026-08-17 06:10 UTCGHSA enrichment
  26. 2026-08-16 14:56 UTCEPSS rescore
  27. 2026-08-16 07:12 UTCEG score recompute
  28. 2026-08-16 07:12 UTCVendor advisory
  29. 2026-08-16 07:12 UTCGHSA enrichment
  30. 2026-08-16 02:14 UTCEPSS rescore
  31. 2026-08-15 08:15 UTCEG score recompute
  32. 2026-08-15 08:15 UTCVendor advisory
  33. 2026-08-15 08:15 UTCGHSA enrichment
  34. 2026-08-15 01:30 UTCEPSS rescore
  35. 2026-08-14 07:43 UTCEG score recompute
  36. 2026-08-14 07:43 UTCVendor advisory
  37. 2026-08-14 07:43 UTCGHSA enrichment
  38. 2026-08-13 22:00 UTCEPSS rescore
  39. 2026-08-13 08:47 UTCEG score recompute
  40. 2026-08-13 08:47 UTCVendor advisory
  41. 2026-08-13 08:47 UTCGHSA enrichment
  42. 2026-08-12 13:51 UTCEPSS rescore
  43. 2026-08-12 09:50 UTCEG score recompute
  44. 2026-08-12 09:50 UTCVendor advisory
  45. 2026-08-12 09:50 UTCGHSA enrichment
  46. 2026-08-11 10:54 UTCEG score recompute
  47. 2026-08-11 10:54 UTCVendor advisory
  48. 2026-08-11 10:54 UTCGHSA enrichment
  49. 2026-08-11 00:00 UTCEPSS rescore
  50. 2026-08-10 11:58 UTCEG score recompute
  51. 2026-08-10 11:58 UTCVendor advisory
  52. 2026-08-10 11:58 UTCGHSA enrichment
  53. 2026-08-09 13:46 UTCEPSS rescore
  54. 2026-08-09 13:02 UTCEG score recompute
  55. 2026-08-09 13:02 UTCVendor advisory
  56. 2026-08-09 13:02 UTCGHSA enrichment
  57. 2026-08-08 16:37 UTCEPSS rescore
  58. 2026-08-08 14:06 UTCEG score recompute
  59. 2026-08-08 14:06 UTCVendor advisory
  60. 2026-08-08 14:06 UTCGHSA enrichment
  61. 2026-08-07 15:09 UTCVendor advisory
  62. 2026-08-07 15:09 UTCGHSA enrichment
  63. 2026-08-06 16:13 UTCEG score recompute
  64. 2026-08-06 16:13 UTCVendor advisory
  65. 2026-08-06 16:13 UTCGHSA enrichment
  66. 2026-08-06 13:47 UTCEPSS rescore
  67. 2026-08-05 19:17 UTCEPSS rescore
  68. 2026-08-05 17:17 UTCVendor advisory
  69. 2026-08-05 17:17 UTCGHSA enrichment
  70. 2026-08-04 18:20 UTCEG score recompute
  71. 2026-08-04 18:20 UTCVendor advisory
  72. 2026-08-04 18:20 UTCGHSA enrichment
  73. 2026-08-04 15:10 UTCEPSS rescore
  74. 2026-08-04 10:39 UTCEPSS rescore
  75. 2026-08-03 19:09 UTCEG score recompute

Related CVEs(same vendor)

Frequently asked(5)

What is CVE-2026-53282?
CVE-2026-53282 is a medium vulnerability published on June 26, 2026. In the Linux kernel, the following vulnerability has been resolved: x86/kexec: Push kjump return address even for non-kjump kexec The version of purgatory code shipped by kexec-tools attempts to look above the top of its stack to find a return address for a kjump, even in a non-kjump kexec. After…
When was CVE-2026-53282 disclosed?
CVE-2026-53282 was first published in the National Vulnerability Database on June 26, 2026, with the most recent update on July 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53282 actively exploited?
CVE-2026-53282 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 97.8% of all scored CVEs.
What is the CVSS score of CVE-2026-53282?
CVE-2026-53282 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-53282?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53282, 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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