CVE-2026-46172

NVD 0.05.5▲
EchelonGraph scoreLOW confidence

Score 5.5 from GitHub Security Advisory published 2026-05-28.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa
Trending — 4 sources updated this week
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 0%CVSS: —Exploit: 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:

ipv6: xfrm6: release dst on error in xfrm6_rcv_encap()

xfrm6_rcv_encap() performs an IPv6 route lookup when the skb does not already have a dst attached. ip6_route_input_lookup() returns a referenced dst entry even when the lookup resolves to an error route.

If dst->error is set, xfrm6_rcv_encap() drops the skb without attaching the dst to the skb and without releasing the reference returned by the lookup. Repeated packets hitting this path therefore leak dst entries.

Release the dst before jumping to the drop path.

CVSS v3
—
EG Score
5.5(low)
EPSS
2.8%
KEV
Not listed

Published

May 28, 2026

Last Modified

June 14, 2026

References (8)

Vendor Advisories for CVE-2026-46172(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 13× in last 7d / 75× 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 126 total refreshes for this CVE.

  1. 2026-07-16 10:21 UTCEG score recompute
  2. 2026-07-16 10:21 UTCVendor advisory
  3. 2026-07-16 10:21 UTCGHSA enrichment
  4. 2026-07-15 16:57 UTCEPSS rescore
  5. 2026-07-15 02:00 UTCEPSS rescore
  6. 2026-07-13 22:30 UTCEPSS rescore
  7. 2026-07-13 06:13 UTCEPSS rescore
  8. 2026-07-12 05:46 UTCEPSS rescore
  9. 2026-07-11 21:16 UTCEG score recompute
  10. 2026-07-11 21:16 UTCVendor advisory
  11. 2026-07-11 21:16 UTCGHSA enrichment
  12. 2026-07-11 08:27 UTCEPSS rescore
  13. 2026-07-09 19:10 UTCEPSS rescore
  14. 2026-07-08 18:26 UTCEG score recompute
  15. 2026-07-08 18:26 UTCVendor advisory
  16. 2026-07-08 18:26 UTCGHSA enrichment
  17. 2026-07-08 15:16 UTCEPSS rescore
  18. 2026-07-07 13:46 UTCEPSS rescore
  19. 2026-07-06 16:27 UTCEPSS rescore
  20. 2026-07-06 02:23 UTCEPSS rescore
  21. 2026-07-05 02:30 UTCEPSS rescore
  22. 2026-07-04 06:31 UTCEPSS rescore
  23. 2026-07-02 14:14 UTCEG score recompute
  24. 2026-07-02 14:14 UTCVendor advisory
  25. 2026-07-02 14:14 UTCGHSA enrichment
Show 75 more
  1. 2026-07-01 15:07 UTCEPSS rescore
  2. 2026-07-01 03:07 UTCEG score recompute
  3. 2026-07-01 03:07 UTCVendor advisory
  4. 2026-07-01 03:07 UTCGHSA enrichment
  5. 2026-06-30 23:22 UTCEPSS rescore
  6. 2026-06-29 19:43 UTCEG score recompute
  7. 2026-06-29 19:43 UTCVendor advisory
  8. 2026-06-29 19:43 UTCGHSA enrichment
  9. 2026-06-29 14:06 UTCEPSS rescore
  10. 2026-06-29 14:06 UTCEPSS rescore
  11. 2026-06-28 19:19 UTCEG score recompute
  12. 2026-06-28 19:19 UTCVendor advisory
  13. 2026-06-28 19:19 UTCGHSA enrichment
  14. 2026-06-28 14:07 UTCEPSS rescore
  15. 2026-06-28 04:56 UTCEPSS rescore
  16. 2026-06-28 04:56 UTCEPSS rescore
  17. 2026-06-27 19:54 UTCEG score recompute
  18. 2026-06-27 19:54 UTCVendor advisory
  19. 2026-06-27 19:54 UTCGHSA enrichment
  20. 2026-06-27 03:08 UTCEPSS rescore
  21. 2026-06-26 20:51 UTCEG score recompute
  22. 2026-06-26 20:51 UTCVendor advisory
  23. 2026-06-26 20:51 UTCGHSA enrichment
  24. 2026-06-25 21:49 UTCEG score recompute
  25. 2026-06-25 21:49 UTCVendor advisory
  26. 2026-06-25 21:49 UTCGHSA enrichment
  27. 2026-06-25 13:49 UTCEPSS rescore
  28. 2026-06-24 22:45 UTCEG score recompute
  29. 2026-06-24 22:45 UTCVendor advisory
  30. 2026-06-24 22:45 UTCGHSA enrichment
  31. 2026-06-24 14:05 UTCEPSS rescore
  32. 2026-06-23 21:33 UTCEPSS rescore
  33. 2026-06-23 21:33 UTCEPSS rescore
  34. 2026-06-22 14:25 UTCEPSS rescore
  35. 2026-06-22 14:25 UTCEPSS rescore
  36. 2026-06-21 14:56 UTCEPSS rescore
  37. 2026-06-21 14:56 UTCEPSS rescore
  38. 2026-06-21 01:59 UTCEPSS rescore
  39. 2026-06-21 01:59 UTCEPSS rescore
  40. 2026-06-19 19:26 UTCEPSS rescore
  41. 2026-06-19 19:26 UTCEPSS rescore
  42. 2026-06-18 17:52 UTCEPSS rescore
  43. 2026-06-18 17:52 UTCEPSS rescore
  44. 2026-06-17 19:50 UTCEG score recompute
  45. 2026-06-17 19:50 UTCGHSA enrichment
  46. 2026-06-17 17:53 UTCEPSS rescore
  47. 2026-06-16 20:41 UTCEG score recompute
  48. 2026-06-16 20:41 UTCVendor advisory
  49. 2026-06-16 20:41 UTCGHSA enrichment
  50. 2026-06-16 17:52 UTCEPSS rescore
  51. 2026-06-15 21:39 UTCEG score recompute
  52. 2026-06-15 21:39 UTCVendor advisory
  53. 2026-06-15 21:39 UTCGHSA enrichment
  54. 2026-06-15 17:49 UTCEPSS rescore
  55. 2026-06-14 23:33 UTCMITRE cvelistV5
  56. 2026-06-14 19:36 UTCEG score recompute
  57. 2026-06-14 19:36 UTCVendor advisory
  58. 2026-06-14 19:35 UTCGHSA enrichment
  59. 2026-06-13 23:00 UTCEPSS rescore
  60. 2026-06-13 20:33 UTCEG score recompute
  61. 2026-06-13 20:32 UTCGHSA enrichment
  62. 2026-06-12 23:12 UTCEPSS rescore
  63. 2026-06-12 23:12 UTCEPSS rescore
  64. 2026-06-12 21:07 UTCEG score recompute
  65. 2026-06-12 21:07 UTCVendor advisory
  66. 2026-06-12 21:07 UTCGHSA enrichment
  67. 2026-06-11 22:03 UTCEG score recompute▲ 5.50
  68. 2026-06-11 22:03 UTCGHSA enrichment
  69. 2026-06-11 14:00 UTCEPSS rescore
  70. 2026-06-10 22:18 UTCEPSS rescore
  71. 2026-06-10 21:18 UTCNVD updateCVSS v3 → 5.5 · severity → MEDIUM
  72. 2026-06-10 13:22 UTCEPSS rescore
  73. 2026-06-10 13:22 UTCEPSS rescore
  74. 2026-06-09 04:52 UTCGHSA enrichment
  75. 2026-06-08 14:17 UTCEPSS rescore

Frequently asked(4)

What is CVE-2026-46172?
CVE-2026-46172 is a publicly disclosed vulnerability published on May 28, 2026. In the Linux kernel, the following vulnerability has been resolved: ipv6: xfrm6: release dst on error in xfrm6rcvencap() xfrm6rcvencap() performs an IPv6 route lookup when the skb does not already have a dst attached. ip6routeinput_lookup() returns a referenced dst entry even when the lookup…
When was CVE-2026-46172 disclosed?
CVE-2026-46172 was first published in the National Vulnerability Database on May 28, 2026, with the most recent update on June 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46172 actively exploited?
CVE-2026-46172 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2026-46172?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46172, 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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