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CVE-2026-68439— wifi: mt76: mt7925: fix possible NULL-pointer deref in mt7925_mcu_bss_he_tlv()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel 6.7版本存在安全漏洞，该漏洞源于mt76_connac_get_he_phy_cap例程可能返回空指针，在解引用前未检查cap指针，可能导致空指针取消引用。

AI Predicted 4.7 Difficulty: Moderate EPSS 0.16% · P4

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux c948b5da6bbec742b433138e3e3f9537a85af2e5< 42288cca984fb72ad3ebe43d4e7fdce9dcabfdb5 affected
c948b5da6bbec742b433138e3e3f9537a85af2e5< 313343ab8cab7417973e7bdd43d3c3e93044b447 affected
c948b5da6bbec742b433138e3e3f9537a85af2e5< 856f1588a2590e70b119e76c15315615a36aebc8 affected
c948b5da6bbec742b433138e3e3f9537a85af2e5< 8d1b6738c1ab48c086b17e7994034aca94258931 affected
6.7 affected
< 6.7 unaffected
6.12.101≤ 6.12.* unaffected
6.18.42≤ 6.18.* unaffected
… +2 more rows
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I. Basic Information for CVE-2026-68439

Vulnerability Information
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Vulnerability Title
wifi: mt76: mt7925: fix possible NULL-pointer deref in mt7925_mcu_bss_he_tlv()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7925: fix possible NULL-pointer deref in mt7925_mcu_bss_he_tlv() mt76_connac_get_he_phy_cap routine can theoretically return NULL so check cap pointer before dereferencing it.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel 6.7版本存在安全漏洞，该漏洞源于mt76_connac_get_he_phy_cap例程可能返回空指针，在解引用前未检查cap指针，可能导致空指针取消引用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux c948b5da6bbec742b433138e3e3f9537a85af2e5 ~ 42288cca984fb72ad3ebe43d4e7fdce9dcabfdb5 -
Linux Linux 6.7 -

II. Public POCs for CVE-2026-68439

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III. Intelligence Information for CVE-2026-68439

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Patches & Fixes for CVE-2026-68439 (4)

Same Patch Batch · Linux · 2026-08-12 · 22 CVEs total

CVE-2026-68431 9.1 CRITICAL ksmbd: validate minimum PDU size for transform requests
CVE-2026-68432 8.8 HIGH vxlan: require CAP_NET_ADMIN in the device netns for changelink
CVE-2026-68433 8.6 HIGH libceph: bound get_version reply decode to front len
CVE-2026-68446 7.8 HIGH drm/vmwgfx: Validate vmw_surface_metadata::array_size
CVE-2026-68445 7.8 HIGH drm/vc4: Prevent shader BO mappings from becoming writable
CVE-2026-68440 7.8 HIGH net: txgbe: fix heap overflow when reading module EEPROM
CVE-2026-68442 7.8 HIGH btrfs: don't propagate EXTENT_FLAG_LOGGING to split extent maps
CVE-2026-68447 7.1 HIGH drm/amdkfd: clamp v9 CRIU control stack checkpoint copy to BO size
CVE-2026-68450 btrfs: free mapping node on duplicate reloc root insert
CVE-2026-68429 drm/dp_mst: Handle torn-down topology gracefully in drm_dp_mst_topology_queue_probe()
CVE-2026-68449 ata: sata_dwc_460ex: fix infinite loop in NCQ tag completion bit-scanning
CVE-2026-68448 ovl: check access to copy_file_range source with src mounter creds
CVE-2026-68444 firmware: arm_ffa: Fix NULL dereference in ffa_partition_info_get()
CVE-2026-68443 hwmon: (gigabyte_waterforce) Stop device IO before calling hid_hw_stop
CVE-2026-68441 net/sched: Handle TC_ACT_REDIRECT from qdisc filter chains
CVE-2026-68438 smp: Make CSD lock acquisition atomic for debug mode
CVE-2026-68437 drm/imagination: Fit paired fragment job in the correct CCCB
CVE-2026-68436 drm/amd/display: use kvzalloc to allocate struct dc
CVE-2026-68435 LoongArch: Fix address space mismatch in kexec command line lookup
CVE-2026-68434 serial: 8250_mid: Fix NULL function pointer dereference on DNV/ICX-D/SNR platforms

Showing top 20 of 22 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-68439

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