CVE-2026-58085

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-19. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

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

After dispatching a decrypt operation to OCF and receiving the result, the wg(4) driver failed to check whether the MAC verification step succeeded. The driver thus silently accepted packets with an invalid Poly1305 authentication tag.

A remote attacker who can send UDP packets to a WireGuard endpoint, and who can guess the bounds of the receiver's replay window, can inject forged or modified transport data packets into the tunnel.

A remote attacker who can intercept WireGuard packets bound for a FreeBSD host can modify the ciphertext and authenticated data without detection by the receiver.

CVSS v3
7.5
EG Score
7.5(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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
14%
KEV
Not listed

Published

August 19, 2026

Last Modified

August 31, 2026

Advisory Details (1)

Auto-updated Aug 27, 2026
No patch confirmed yet.
generic
https://security.freebsd.org/advisories/FreeBSD-SA-26:52.if_wg.asc

Vendor Advisories for CVE-2026-58085(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 30× in last 7d / 102× 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 107 total refreshes for this CVE.

  1. 2026-09-19 22:44 UTCEG score recompute
  2. 2026-09-19 22:44 UTCGHSA enrichment
  3. 2026-09-19 11:03 UTCGHSA enrichment
  4. 2026-09-18 23:26 UTCEG score recompute
  5. 2026-09-18 23:26 UTCGHSA enrichment
  6. 2026-09-18 19:28 UTCEPSS rescore
  7. 2026-09-18 11:48 UTCEG score recompute
  8. 2026-09-18 11:48 UTCGHSA enrichment
  9. 2026-09-18 00:11 UTCEG score recompute
  10. 2026-09-18 00:11 UTCGHSA enrichment
  11. 2026-09-17 19:31 UTCEPSS rescore
  12. 2026-09-17 10:54 UTCGHSA enrichment
  13. 2026-09-16 23:17 UTCEG score recompute
  14. 2026-09-16 23:17 UTCGHSA enrichment
  15. 2026-09-16 14:08 UTCEPSS rescore
  16. 2026-09-16 11:40 UTCEG score recompute
  17. 2026-09-16 11:40 UTCGHSA enrichment
  18. 2026-09-16 05:15 UTCEPSS rescore
  19. 2026-09-15 23:44 UTCGHSA enrichment
  20. 2026-09-15 11:19 UTCEG score recompute
  21. 2026-09-15 11:19 UTCGHSA enrichment
  22. 2026-09-15 03:11 UTCEPSS rescore
  23. 2026-09-14 22:36 UTCGHSA enrichment
  24. 2026-09-14 10:59 UTCGHSA enrichment
  25. 2026-09-13 23:22 UTCEG score recompute
Show 75 more
  1. 2026-09-13 23:22 UTCGHSA enrichment
  2. 2026-09-13 16:47 UTCEPSS rescore
  3. 2026-09-13 11:45 UTCGHSA enrichment
  4. 2026-09-13 00:08 UTCEG score recompute
  5. 2026-09-13 00:08 UTCGHSA enrichment
  6. 2026-09-12 12:31 UTCGHSA enrichment
  7. 2026-09-12 00:54 UTCEG score recompute
  8. 2026-09-12 00:54 UTCGHSA enrichment
  9. 2026-09-11 14:53 UTCEPSS rescore
  10. 2026-09-11 13:17 UTCEG score recompute
  11. 2026-09-11 13:17 UTCGHSA enrichment
  12. 2026-09-11 01:40 UTCGHSA enrichment
  13. 2026-09-10 14:03 UTCEG score recompute
  14. 2026-09-10 14:03 UTCGHSA enrichment
  15. 2026-09-10 09:35 UTCEPSS rescore
  16. 2026-09-10 02:25 UTCGHSA enrichment
  17. 2026-09-09 14:48 UTCGHSA enrichment
  18. 2026-09-09 02:43 UTCEG score recompute
  19. 2026-09-09 02:42 UTCGHSA enrichment
  20. 2026-09-08 22:01 UTCEPSS rescore
  21. 2026-09-08 07:31 UTCGHSA enrichment
  22. 2026-09-07 19:53 UTCEG score recompute
  23. 2026-09-07 19:53 UTCGHSA enrichment
  24. 2026-09-07 16:01 UTCEPSS rescore
  25. 2026-09-07 08:16 UTCGHSA enrichment
  26. 2026-09-06 19:49 UTCEG score recompute
  27. 2026-09-06 19:49 UTCGHSA enrichment
  28. 2026-09-06 13:47 UTCEPSS rescore
  29. 2026-09-06 08:08 UTCGHSA enrichment
  30. 2026-09-05 20:31 UTCEG score recompute
  31. 2026-09-05 20:31 UTCGHSA enrichment
  32. 2026-09-05 08:55 UTCGHSA enrichment
  33. 2026-09-04 21:17 UTCEG score recompute
  34. 2026-09-04 21:17 UTCGHSA enrichment
  35. 2026-09-04 08:16 UTCEG score recompute
  36. 2026-09-04 08:16 UTCGHSA enrichment
  37. 2026-09-04 05:07 UTCEPSS rescore
  38. 2026-09-03 20:37 UTCGHSA enrichment
  39. 2026-09-03 08:59 UTCGHSA enrichment
  40. 2026-09-02 21:22 UTCEG score recompute
  41. 2026-09-02 21:22 UTCGHSA enrichment
  42. 2026-09-02 14:12 UTCEPSS rescore
  43. 2026-09-02 05:59 UTCGHSA enrichment
  44. 2026-09-01 18:13 UTCEG score recompute
  45. 2026-09-01 18:13 UTCGHSA enrichment
  46. 2026-09-01 13:54 UTCEPSS rescore
  47. 2026-09-01 06:35 UTCEG score recompute
  48. 2026-09-01 06:35 UTCGHSA enrichment
  49. 2026-09-01 04:40 UTCEPSS rescore
  50. 2026-08-31 18:58 UTCGHSA enrichment
  51. 2026-08-31 14:11 UTCGHSA enrichment
  52. 2026-08-31 01:22 UTCEG score recompute
  53. 2026-08-31 01:22 UTCGHSA enrichment
  54. 2026-08-30 19:17 UTCEPSS rescore
  55. 2026-08-30 13:45 UTCGHSA enrichment
  56. 2026-08-30 02:07 UTCEG score recompute
  57. 2026-08-30 02:07 UTCGHSA enrichment
  58. 2026-08-30 01:22 UTCEPSS rescore
  59. 2026-08-29 14:30 UTCGHSA enrichment
  60. 2026-08-29 02:30 UTCEG score recompute
  61. 2026-08-29 02:30 UTCGHSA enrichment
  62. 2026-08-28 21:42 UTCEPSS rescore
  63. 2026-08-28 05:36 UTCEG score recompute
  64. 2026-08-28 05:36 UTCGHSA enrichment
  65. 2026-08-27 17:38 UTCGHSA enrichment
  66. 2026-08-27 16:53 UTCEG score recompute▲ 7.50
  67. 2026-08-27 16:53 UTCGHSA enrichment
  68. 2026-08-27 16:43 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  69. 2026-08-27 14:25 UTCEPSS rescore
  70. 2026-08-26 17:11 UTCGHSA enrichment
  71. 2026-08-26 14:46 UTCEPSS rescore
  72. 2026-08-25 13:49 UTCEPSS rescore
  73. 2026-08-24 23:31 UTCGHSA enrichment
  74. 2026-08-23 00:19 UTCEPSS rescore
  75. 2026-08-22 03:56 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-58085?
CVE-2026-58085 is a high vulnerability published on August 19, 2026. After dispatching a decrypt operation to OCF and receiving the result, the wg(4) driver failed to check whether the MAC verification step succeeded. The driver thus silently accepted packets with an invalid Poly1305 authentication tag. A remote attacker who can send UDP packets to a WireGuard…
When was CVE-2026-58085 disclosed?
CVE-2026-58085 was first published in the National Vulnerability Database on August 19, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-58085 actively exploited?
CVE-2026-58085 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 86.5% of all scored CVEs.
What is the CVSS score of CVE-2026-58085?
CVE-2026-58085 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-58085?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-58085, 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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