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.

The Rocky Linux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1784037722 advisory.

  - 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. (CVE-2026-58374)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The AlmaLinux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1784037722 advisory.

  - 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. (CVE-2026-58374)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES16 / SLES_SAP16 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2026:22851-1 advisory.

    This update for wpa_supplicant fixes the following issues

    - CVE-2026-58374: Fixed a missing bounds check in AP-mode Wi-Fi 7 (IEEE 802.11be) MLO association request     processing allows an       unauthenticated user to send a crafted management frame and cause an out-of-bounds write (bsc#1269892).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote openSUSE 16 host has packages installed that are affected by a vulnerability as referenced in the openSUSE- SU-2026:21415-1 advisory.

    This update for wpa_supplicant fixes the following issues

    - CVE-2026-58374: Fixed a missing bounds check in AP-mode Wi-Fi 7 (IEEE 802.11be) MLO association request     processing allows an       unauthenticated user to send a crafted management frame and cause an out-of-bounds write (bsc#1269892).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2026:0609 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    CVE-2026-58374:
    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.

Tenable has extracted the preceding description block directly from the Tencent Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3103-1 advisory.

    - CVE-2025-24912: hostapd RADIUS authentication of wi-fi devices allows a user in between the hostapd and     the RADIUS       server to inject crafted RADIUS packets and force RADIUS authentications to fail (bsc#1239461).
    - CVE-2026-58374: missing bounds check in AP-mode Wi-Fi 7 (IEEE 802.11be) MLO association request     processing allows an       unauthenticated user to send a crafted management frame and cause an out-of-bounds write (bsc#1269892).
    - Missing network context validation for PMKSA caching https://w1.fi/security/2026-2/
    - Unexpected SAE commit message contents terminating `wpa_supplicant` https://w1.fi/security/2026-3/

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote openSUSE 16 host has a package installed that is affected by a vulnerability as referenced in the openSUSE- SU-2026:21360-1 advisory.

    Changes in hostapd:

    - CVE-2026-58374: Missing multi-link parsing validation in wpa_supplicant and hostapd (bsc#1269892)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2026-58374)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
360571	Rocky Linux 9.6 [TuxCare] Security Update: hostapd / hostapd-logwatch (ALMALINUX9.6:CLSA-2026:1784037722)	Nessus	Rocky Linux Local Security Checks	Local	high
360501	AlmaLinux 9.6 [TuxCare] Security Update: hostapd / hostapd-logwatch (ALMALINUX9.6:CLSA-2026:1784037722)	Nessus	Alma Linux Local Security Checks	Local	high
330330	SUSE SLES16 Security Update : wpa_supplicant (SUSE-SU-2026:22851-1)	Nessus	SuSE Local Security Checks	Local	high
329723	openSUSE 16 Security Update : wpa_supplicant (openSUSE-SU-2026:21415-1)	Nessus	SuSE Local Security Checks	Local	high
328394	TencentOS Server 4: hostapd (TSSA-2026:0609)	Nessus	Tencent Local Security Checks	Local	high
327734	SUSE SLED15 / SLES15 Security Update : wpa_supplicant (SUSE-SU-2026:3103-1)	Nessus	SuSE Local Security Checks	Local	high
327573	openSUSE 16 Security Update : hostapd (openSUSE-SU-2026:21360-1)	Nessus	SuSE Local Security Checks	Local	high
324023	Linux Distros Unpatched Vulnerability : CVE-2026-58374	Nessus	Misc.	Local	high

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CVE-2026-58374

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