CVE-2026-53076

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-24. the CNA's CVSS baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

A fix is available — apply it.

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

bpf: Fix OOB in pcpu_init_value

An out-of-bounds read occurs when copying element from a BPF_MAP_TYPE_CGROUP_STORAGE map to another pcpu map with the same value_size that is not rounded up to 8 bytes.

The issue happens when:

  • A CGROUP_STORAGE map is created with value_size not aligned to
8 bytes (e.g., 4 bytes)
  • A pcpu map is created with the same value_size (e.g., 4 bytes)
  • Update element in 2 with data in 1

pcpu_init_value assumes that all sources are rounded up to 8 bytes, and invokes copy_map_value_long to make a data copy, However, the assumption doesn't stand since there are some cases where the source may not be rounded up to 8 bytes, e.g., CGROUP_STORAGE, skb->data. the verifier verifies exactly the size that the source claims, not the size rounded up to 8 bytes by kernel, an OOB happens when the source has only 4 bytes while the copy size(4) is rounded up to 8.

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
36(Track)
EG Risk 36/100SSVC: 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
Severity71% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

June 24, 2026

Last Modified

August 5, 2026

Advisory Details (5)

Auto-updated Jun 30, 2026
No patch confirmed yet.
generic

bpf: Fix OOB in pcpu_init_value - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e19c5ed9f1922a6854073f8651a63fa7be26e9e9
generic

bpf: Fix OOB in pcpu_init_value - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e0378419b0e20178b5d100b27c9cc7e51064202e
generic

bpf: Fix OOB in pcpu_init_value - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/634a793d0e1c822412095d25a1338f8831ad894c
generic

bpf: Fix OOB in pcpu_init_value - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6086079e6d1c32ba4c4b422612b8aebb1129a96c
generic

bpf: Fix OOB in pcpu_init_value - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/576afddfee8d1108ee299bf10f581593540d1a36

Vendor Advisories for CVE-2026-53076(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-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-08-30ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-08-30ubuntu
ubuntulinux-tools-realtime-hwe-22.04 (6.8.1-1056.57~22.04.2) @ jammy2026-08-30ubuntu
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-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-08-30ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-08-30ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-08-30ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-08-30ubuntu
ubuntulinux-tools-nvidia-hwe-22.04-edge (6.8.0-1059.62~22.04.1) @ jammy2026-08-30ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-08-30ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-08-30ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-08-30ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-08-30ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-08-30ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-30ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-08-30ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-08-30ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-08-30ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-30ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16~24.04.1) @ noble2026-08-30ubuntu
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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 7.2~rc5-1~exp1 (496 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 7.2~rc7-1~exp1 (350 versions)——
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—

Weakness Classification(1)

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

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 4× in last 7d / 83× 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 268 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 13:47 UTCEPSS rescore
  5. 2026-09-04 05:06 UTCEPSS rescore
  6. 2026-09-02 14:12 UTCEPSS rescore
  7. 2026-09-01 13:54 UTCEPSS rescore
  8. 2026-09-01 04:40 UTCEPSS rescore
  9. 2026-08-30 19:55 UTCEG score recompute
  10. 2026-08-30 19:55 UTCVendor advisory
  11. 2026-08-30 19:55 UTCGHSA enrichment
  12. 2026-08-30 19:17 UTCEPSS rescore
  13. 2026-08-28 21:41 UTCEPSS rescore
  14. 2026-08-28 03:45 UTCEG score recompute
  15. 2026-08-28 03:45 UTCVendor advisory
  16. 2026-08-28 03:45 UTCGHSA enrichment
  17. 2026-08-27 14:25 UTCEPSS rescore
  18. 2026-08-26 14:46 UTCEPSS rescore
  19. 2026-08-25 13:49 UTCEPSS rescore
  20. 2026-08-25 01:32 UTCEG score recompute
  21. 2026-08-25 01:32 UTCVendor advisory
  22. 2026-08-25 01:32 UTCGHSA enrichment
  23. 2026-08-24 13:37 UTCEG score recompute
  24. 2026-08-24 13:37 UTCVendor advisory
  25. 2026-08-24 13:37 UTCGHSA enrichment
Show 75 more
  1. 2026-08-23 23:18 UTCVendor advisory
  2. 2026-08-23 23:18 UTCGHSA enrichment
  3. 2026-08-23 11:24 UTCVendor advisory
  4. 2026-08-23 11:24 UTCGHSA enrichment
  5. 2026-08-22 23:30 UTCVendor advisory
  6. 2026-08-22 23:30 UTCGHSA enrichment
  7. 2026-08-22 11:35 UTCEG score recompute
  8. 2026-08-22 11:35 UTCVendor advisory
  9. 2026-08-22 11:35 UTCGHSA enrichment
  10. 2026-08-21 23:49 UTCEPSS rescore
  11. 2026-08-21 19:10 UTCVendor advisory
  12. 2026-08-21 19:10 UTCGHSA enrichment
  13. 2026-08-21 07:16 UTCEG score recompute
  14. 2026-08-21 07:16 UTCVendor advisory
  15. 2026-08-21 07:16 UTCGHSA enrichment
  16. 2026-08-20 22:55 UTCEPSS rescore
  17. 2026-08-20 19:16 UTCVendor advisory
  18. 2026-08-20 19:16 UTCGHSA enrichment
  19. 2026-08-20 07:22 UTCEG score recompute
  20. 2026-08-20 07:22 UTCVendor advisory
  21. 2026-08-20 07:22 UTCGHSA enrichment
  22. 2026-08-19 17:04 UTCEPSS rescore
  23. 2026-08-19 14:15 UTCVendor advisory
  24. 2026-08-19 14:15 UTCGHSA enrichment
  25. 2026-08-19 02:05 UTCEG score recompute
  26. 2026-08-19 02:05 UTCVendor advisory
  27. 2026-08-19 02:04 UTCGHSA enrichment
  28. 2026-08-18 13:48 UTCEPSS rescore
  29. 2026-08-17 13:47 UTCEPSS rescore
  30. 2026-08-17 11:23 UTCVendor advisory
  31. 2026-08-17 11:22 UTCGHSA enrichment
  32. 2026-08-16 23:28 UTCEG score recompute
  33. 2026-08-16 23:28 UTCVendor advisory
  34. 2026-08-16 23:28 UTCGHSA enrichment
  35. 2026-08-16 14:56 UTCEPSS rescore
  36. 2026-08-16 11:33 UTCEG score recompute
  37. 2026-08-16 11:33 UTCVendor advisory
  38. 2026-08-16 11:33 UTCGHSA enrichment
  39. 2026-08-16 02:14 UTCEPSS rescore
  40. 2026-08-15 23:40 UTCVendor advisory
  41. 2026-08-15 23:40 UTCGHSA enrichment
  42. 2026-08-15 11:46 UTCEG score recompute
  43. 2026-08-15 11:46 UTCVendor advisory
  44. 2026-08-15 11:46 UTCGHSA enrichment
  45. 2026-08-15 01:30 UTCEPSS rescore
  46. 2026-08-14 23:51 UTCVendor advisory
  47. 2026-08-14 23:51 UTCGHSA enrichment
  48. 2026-08-14 11:57 UTCVendor advisory
  49. 2026-08-14 11:57 UTCGHSA enrichment
  50. 2026-08-14 00:04 UTCEG score recompute
  51. 2026-08-14 00:04 UTCVendor advisory
  52. 2026-08-14 00:04 UTCGHSA enrichment
  53. 2026-08-13 22:00 UTCEPSS rescore
  54. 2026-08-13 12:09 UTCVendor advisory
  55. 2026-08-13 12:09 UTCGHSA enrichment
  56. 2026-08-13 00:15 UTCEG score recompute
  57. 2026-08-13 00:15 UTCVendor advisory
  58. 2026-08-13 00:15 UTCGHSA enrichment
  59. 2026-08-12 13:51 UTCEPSS rescore
  60. 2026-08-12 12:21 UTCVendor advisory
  61. 2026-08-12 12:21 UTCGHSA enrichment
  62. 2026-08-12 00:15 UTCEG score recompute
  63. 2026-08-12 00:15 UTCVendor advisory
  64. 2026-08-12 00:15 UTCGHSA enrichment
  65. 2026-08-11 12:21 UTCVendor advisory
  66. 2026-08-11 12:21 UTCGHSA enrichment
  67. 2026-08-11 00:27 UTCEG score recompute
  68. 2026-08-11 00:27 UTCVendor advisory
  69. 2026-08-11 00:27 UTCGHSA enrichment
  70. 2026-08-11 00:00 UTCEPSS rescore
  71. 2026-08-10 12:33 UTCVendor advisory
  72. 2026-08-10 12:33 UTCGHSA enrichment
  73. 2026-08-10 00:39 UTCVendor advisory
  74. 2026-08-10 00:39 UTCGHSA enrichment
  75. 2026-08-09 12:46 UTCVendor advisory

Frequently asked(5)

What is CVE-2026-53076?
CVE-2026-53076 is a high vulnerability published on June 24, 2026. In the Linux kernel, the following vulnerability has been resolved: bpf: Fix OOB in pcpuinitvalue An out-of-bounds read occurs when copying element from a BPFMAPTYPECGROUPSTORAGE map to another pcpu map with the same value_size that is not rounded up to 8 bytes. The issue happens when: 1. A…
When was CVE-2026-53076 disclosed?
CVE-2026-53076 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-2026-53076 actively exploited?
CVE-2026-53076 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 98.2% of all scored CVEs.
What is the CVSS score of CVE-2026-53076?
CVE-2026-53076 has a CVSS v4.0 base score of 7.1 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-53076?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53076, 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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