CVE-2026-46320

HIGHPre-NVD 7.47.4—
EchelonGraph scoreHIGH confidence

Score 7.4 from GitHub Security Advisory (severity: HIGH) published 2026-06-09. a secondary CVSS source baseline 7.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.4
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.4Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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

tap: free page on error paths in tap_get_user_xdp()

tap_get_user_xdp() rejects a frame shorter than ETH_HLEN with -EINVAL, and returns -ENOMEM when build_skb() fails. Both paths jump to the err label without freeing the page that vhost_net_build_xdp() allocated for the frame. tap_sendmsg() discards the per-buffer return value and always returns 0, so vhost_tx_batch() takes the success path and never frees the page; each rejected frame in a batch leaks one page-frag chunk.

Free the page on both error paths, before the skb is built. This is the tap counterpart of the same leak in tun_xdp_one().

CVSS v3
7.4
EG Score
7.4(high)
EPSS
14.4%
KEV
Not listed

Published

June 9, 2026

Last Modified

June 19, 2026

Advisory Details (2)

Auto-updated Jun 14, 2026
No patch confirmed yet.
generic

tap: free page on error paths in tap_get_user_xdp() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3bcf7aec6a9d16438f2cec29f5d7c8d5b8edf9b2
generic

tap: free page on error paths in tap_get_user_xdp() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/18a84c35842e19cd3c5534d8cee73d31863f696d

Vendor Advisories for CVE-2026-46320(2)

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

Data Freshness Timeline

(refreshed 41× in last 7d / 141× 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 141 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-46320?
CVE-2026-46320 is a high vulnerability published on June 9, 2026. In the Linux kernel, the following vulnerability has been resolved: tap: free page on error paths in tapgetuser_xdp() tapgetuserxdp() rejects a frame shorter than ETHHLEN with -EINVAL, and returns -ENOMEM when build_skb() fails. Both paths jump to the err label without freeing the page that…
When was CVE-2026-46320 disclosed?
CVE-2026-46320 was first published in the National Vulnerability Database on June 9, 2026, with the most recent update on June 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46320 actively exploited?
CVE-2026-46320 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 14.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-46320?
CVE-2026-46320 has a CVSS v3 base score of 7.4 (NVD).
How do I remediate CVE-2026-46320?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46320, 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.

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