CVE-2026-58374

HIGHNVD 7.16.5▼
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory published 2026-06-30. NVD baseline CVSS 7.1; sources differ by 0.6.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
7.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.1Exploit: NoneExposed: 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
6.5(high)
EPSS
20.1%
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 24× in last 7d / 24× 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.

  1. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-06 15:22 UTCEG score recompute
  4. 2026-07-06 15:21 UTCGHSA enrichment
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-05 15:13 UTCEG score recompute
  8. 2026-07-05 15:13 UTCGHSA enrichment
  9. 2026-07-05 02:31 UTCEPSS rescore
  10. 2026-07-05 02:30 UTCEPSS rescore
  11. 2026-07-04 15:05 UTCEG score recompute
  12. 2026-07-04 15:05 UTCGHSA enrichment
  13. 2026-07-04 06:31 UTCEPSS rescore
  14. 2026-07-04 06:31 UTCEPSS rescore
  15. 2026-07-03 14:58 UTCEG score recompute
  16. 2026-07-03 14:57 UTCGHSA enrichment
  17. 2026-07-03 04:38 UTCNVD updateCVSS v3 → 7.1 · severity → HIGH
  18. 2026-07-02 14:47 UTCEG score recompute
  19. 2026-07-02 14:47 UTCGHSA enrichment
  20. 2026-07-01 15:07 UTCEPSS rescore
  21. 2026-07-01 14:40 UTCEG score recompute
  22. 2026-07-01 14:40 UTCGHSA enrichment
  23. 2026-06-30 14:33 UTCEG score recompute
  24. 2026-06-30 14:32 UTCNVD updatefirst tracked

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 20.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-58374?
CVE-2026-58374 has a CVSS v3 base score of 7.1 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 6.5.
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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-58374

Explore →

Is Your Infrastructure Affected by CVE-2026-58374?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs