CVE-2026-63857

CRITICALPre-NVD 9.89.8
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-19. the CNA's CVSS baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
Trending — 4 sources updated this week
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:

net: airoha: Do not read uninitialized fragment address in airoha_dev_xmit()

The transmit loop in airoha_dev_xmit() reads fragment address and length during its final iteration, when the loop index equals skb_shinfo(skb)->nr_frags, at which point the fragment data is uninitialized. While these values are never consumed, the read itself is unsafe and may trigger a page fault. Fix this by avoiding the fragment read on the last iteration. Additionally, move the skb pointer from the first to the last used packet descriptor, so that airoha_qdma_tx_napi_poll() defers freeing the skb until the final descriptor is processed.

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
31%
KEV
Not listed

Published

July 19, 2026

Last Modified

August 5, 2026

Advisory Details (3)

Auto-updated Aug 26, 2026
No patch confirmed yet.
generic

net: airoha: Do not read uninitialized fragment address in airoha_dev_xmit() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bde34e84edc8b5571fbde7e941e175a4293ee1eb
generic

net: airoha: Do not read uninitialized fragment address in airoha_dev_xmit() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d78c8ab7bd84952e053d0c622b7fc1b4ad8a19a3
generic

net: airoha: Do not read uninitialized fragment address in airoha_dev_xmit() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f670fa4b19ceddc6d215dda4997888ccba9bbc61

Vendor Advisories for CVE-2026-63857(1)

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

Patch Availability(5)

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

(2 across 2 ecosystems)
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.2~rc5-1~exp1 (160 versions)
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (137 versions)7.0.10-1

All Vendor Advisories

(5)

Data Freshness Timeline

(refreshed 54× in last 7d / 337× 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 410 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-63857?
CVE-2026-63857 is a critical vulnerability published on July 19, 2026. In the Linux kernel, the following vulnerability has been resolved: net: airoha: Do not read uninitialized fragment address in airohadevxmit() The transmit loop in airohadevxmit() reads fragment address and length during its final iteration, when the loop index equals skbshinfo(skb)->nrfrags, at…
When was CVE-2026-63857 disclosed?
CVE-2026-63857 was first published in the National Vulnerability Database on July 19, 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-2026-63857 actively exploited?
CVE-2026-63857 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 69.0% of all scored CVEs.
What is the CVSS score of CVE-2026-63857?
CVE-2026-63857 has a CVSS v4.0 base score of 9.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-63857?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-63857, 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-2026-63857

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