CVE-2026-53055

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-24. the CNA's CVSS baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

A fix is available — apply it.

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

crypto: hisilicon/sec2 - prevent req used-after-free for sec

During packet transmission, if the system is under heavy load, the hardware might complete processing the packet and free the request memory (req) before the transmission function finishes. If the software subsequently accesses this req, a use-after-free error will occur. The qp_ctx memory exists throughout the packet sending process, so replace the req with the qp_ctx.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity98% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
36%
KEV
Not listed

Published

June 24, 2026

Last Modified

August 5, 2026

Advisory Details (3)

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

crypto: hisilicon/sec2 - prevent req used-after-free for sec - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/67b53a660e6bf0da2fa8d8872e897a14d8059eaf
generic

crypto: hisilicon/sec2 - prevent req used-after-free for sec - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ad73563f3a1edbfddf2724136c6a15826b354e18
generic

crypto: hisilicon/sec2 - prevent req used-after-free for sec - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b375c3c7209cc59e40e97998aa9bc768369cca0e

Vendor Advisories for CVE-2026-53055(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-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-08-30ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-08-30ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-08-30ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-08-30ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-08-30ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-08-30ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-08-30ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-08-30ubuntu

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—

Weakness Classification(1)

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

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 5× in last 7d / 164× 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 532 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 13:47 UTCEPSS rescore
  6. 2026-09-04 05:06 UTCEPSS rescore
  7. 2026-09-02 14:12 UTCEPSS rescore
  8. 2026-09-01 13:54 UTCEPSS rescore
  9. 2026-09-01 04:40 UTCEPSS rescore
  10. 2026-08-30 23:47 UTCVendor advisory
  11. 2026-08-30 23:47 UTCGHSA enrichment
  12. 2026-08-30 20:04 UTCEG score recompute
  13. 2026-08-30 20:04 UTCVendor advisory
  14. 2026-08-30 20:04 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. 2026-08-28 03:48 UTCEG score recompute
  19. 2026-08-28 03:48 UTCVendor advisory
  20. 2026-08-28 03:48 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. 2026-08-25 05:23 UTCVendor advisory
  25. 2026-08-25 05:22 UTCGHSA enrichment
Show 75 more
  1. 2026-08-25 01:39 UTCVendor advisory
  2. 2026-08-25 01:38 UTCGHSA enrichment
  3. 2026-08-24 21:55 UTCEG score recompute
  4. 2026-08-24 21:55 UTCVendor advisory
  5. 2026-08-24 21:55 UTCGHSA enrichment
  6. 2026-08-24 13:39 UTCEG score recompute
  7. 2026-08-24 13:39 UTCVendor advisory
  8. 2026-08-24 13:39 UTCGHSA enrichment
  9. 2026-08-24 04:35 UTCVendor advisory
  10. 2026-08-24 04:34 UTCGHSA enrichment
  11. 2026-08-23 23:12 UTCVendor advisory
  12. 2026-08-23 23:12 UTCGHSA enrichment
  13. 2026-08-23 18:59 UTCVendor advisory
  14. 2026-08-23 18:59 UTCGHSA enrichment
  15. 2026-08-23 15:16 UTCVendor advisory
  16. 2026-08-23 15:15 UTCGHSA enrichment
  17. 2026-08-23 11:32 UTCVendor advisory
  18. 2026-08-23 11:31 UTCGHSA enrichment
  19. 2026-08-23 07:48 UTCVendor advisory
  20. 2026-08-23 07:48 UTCGHSA enrichment
  21. 2026-08-23 02:39 UTCEG score recompute
  22. 2026-08-23 02:39 UTCVendor advisory
  23. 2026-08-23 02:39 UTCGHSA enrichment
  24. 2026-08-23 00:19 UTCEPSS rescore
  25. 2026-08-22 22:40 UTCVendor advisory
  26. 2026-08-22 22:40 UTCGHSA enrichment
  27. 2026-08-22 15:23 UTCVendor advisory
  28. 2026-08-22 15:23 UTCGHSA enrichment
  29. 2026-08-22 11:38 UTCVendor advisory
  30. 2026-08-22 11:38 UTCGHSA enrichment
  31. 2026-08-22 00:55 UTCEG score recompute
  32. 2026-08-22 00:55 UTCVendor advisory
  33. 2026-08-22 00:55 UTCGHSA enrichment
  34. 2026-08-21 23:49 UTCEPSS rescore
  35. 2026-08-21 21:11 UTCVendor advisory
  36. 2026-08-21 21:11 UTCGHSA enrichment
  37. 2026-08-21 17:28 UTCVendor advisory
  38. 2026-08-21 17:28 UTCGHSA enrichment
  39. 2026-08-21 13:10 UTCVendor advisory
  40. 2026-08-21 13:10 UTCGHSA enrichment
  41. 2026-08-21 09:13 UTCVendor advisory
  42. 2026-08-21 09:13 UTCGHSA enrichment
  43. 2026-08-21 05:11 UTCVendor advisory
  44. 2026-08-21 05:11 UTCGHSA enrichment
  45. 2026-08-20 23:43 UTCEG score recompute
  46. 2026-08-20 23:43 UTCVendor advisory
  47. 2026-08-20 23:43 UTCGHSA enrichment
  48. 2026-08-20 22:55 UTCEPSS rescore
  49. 2026-08-20 19:59 UTCVendor advisory
  50. 2026-08-20 19:59 UTCGHSA enrichment
  51. 2026-08-20 16:14 UTCVendor advisory
  52. 2026-08-20 16:14 UTCGHSA enrichment
  53. 2026-08-20 11:07 UTCVendor advisory
  54. 2026-08-20 11:06 UTCGHSA enrichment
  55. 2026-08-20 07:23 UTCEG score recompute
  56. 2026-08-20 07:23 UTCVendor advisory
  57. 2026-08-20 07:23 UTCGHSA enrichment
  58. 2026-08-19 17:04 UTCEPSS rescore
  59. 2026-08-19 14:15 UTCVendor advisory
  60. 2026-08-19 14:15 UTCGHSA enrichment
  61. 2026-08-19 10:31 UTCVendor advisory
  62. 2026-08-19 10:31 UTCGHSA enrichment
  63. 2026-08-19 05:49 UTCVendor advisory
  64. 2026-08-19 05:49 UTCGHSA enrichment
  65. 2026-08-19 02:06 UTCEG score recompute
  66. 2026-08-19 02:06 UTCVendor advisory
  67. 2026-08-19 02:06 UTCGHSA enrichment
  68. 2026-08-18 13:48 UTCEPSS rescore
  69. 2026-08-17 14:44 UTCEG score recompute
  70. 2026-08-17 14:44 UTCVendor advisory
  71. 2026-08-17 14:43 UTCGHSA enrichment
  72. 2026-08-17 13:47 UTCEPSS rescore
  73. 2026-08-17 11:00 UTCVendor advisory
  74. 2026-08-17 11:00 UTCGHSA enrichment
  75. 2026-08-17 07:17 UTCVendor advisory

Frequently asked(5)

What is CVE-2026-53055?
CVE-2026-53055 is a critical vulnerability published on June 24, 2026. In the Linux kernel, the following vulnerability has been resolved: crypto: hisilicon/sec2 - prevent req used-after-free for sec During packet transmission, if the system is under heavy load, the hardware might complete processing the packet and free the request memory (req) before the transmission…
When was CVE-2026-53055 disclosed?
CVE-2026-53055 was first published in the National Vulnerability Database on June 24, 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-2026-53055 actively exploited?
CVE-2026-53055 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 63.7% of all scored CVEs.
What is the CVSS score of CVE-2026-53055?
CVE-2026-53055 has a CVSS v4.0 base score of 9.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-53055?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53055, 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-2026-53055

Explore →

Is Your Infrastructure Affected by CVE-2026-53055?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs