CVE-2026-58374

HIGHNVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.1 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 79% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
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

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

In hostapd before 2.12, a missing bounds check in AP-mode Wi-Fi 7 (IEEE 802.11be) Multi-Link Operation (MLO) association request processing allows an unauthenticated attacker within wireless range to send a crafted management frame containing a malformed Multi-Link Element or Per-STA Profile subelement. In hostapd_process_ml_assoc_req() in src/ap/ieee802_11_eht.c, the received link_id field can be parsed as value 15, but the corresponding links[] storage only has valid entries for lower link IDs (0 through 14). This causes an out-of-bounds write / small memory corruption during association processing before the 4-way handshake. The attack does not require network credentials, prior authentication, or user interaction. The confirmed practical impact is denial of service through hostapd process termination. This affects hostapd v2.11 and newer development snapshots before v2.12 when built with CONFIG_IEEE80211BE enabled. The issue is fixed in hostapd v2.12 and the upstream 2026-1 fixes.

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
21%
KEV
Not listed

Published

June 30, 2026

Last Modified

July 2, 2026

Advisory Details (5)

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

oss-security - hostapd: OOB write in Wi-Fi 7 MLD association parsing (pre-auth DoS)

https://www.openwall.com/lists/oss-security/2026/06/30/1
generic
https://w1.fi/security/2026-1/missing-ml-parsing-validation.txt
generic

Index of /security/2026-1

https://w1.fi/security/2026-1/
generic

BSS: Add bounds check for link_id in Basic MLE parsing - hostap - hostapd/wpa_supplicant

https://git.w1.fi/cgit/hostap/commit/?id=aa9d345887389a251c63a3781d2ad2940d079193
generic

AP MLD: Fix link ID validation in Basic MLE parsing - hostap - hostapd/wpa_supplicant

https://git.w1.fi/cgit/hostap/commit/?id=46dd5a4ffc9bcf44cf8fc45120b3e1e5ec922187

Vendor Advisories for CVE-2026-58374(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 21× in last 7d / 114× 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 179 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-58374?
CVE-2026-58374 is a high vulnerability published on June 30, 2026. In hostapd before 2.12, a missing bounds check in AP-mode Wi-Fi 7 (IEEE 802.11be) Multi-Link Operation (MLO) association request processing allows an unauthenticated attacker within wireless range to send a crafted management frame containing a malformed Multi-Link Element or Per-STA Profile…
When was CVE-2026-58374 disclosed?
CVE-2026-58374 was first published in the National Vulnerability Database on June 30, 2026, with the most recent update on July 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-58374 actively exploited?
CVE-2026-58374 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 78.6% of all scored CVEs.
What is the CVSS score of CVE-2026-58374?
CVE-2026-58374 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-58374?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-58374, 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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