CVE-2026-68197
Vulnerability Scoring
Analysis In Progress
CVE-2026-68197 Vulnerability Analysis & Exploit Details
CVE-2026-68197
Attack Complexity Details
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Attack Complexity:
Attack Complexity Analysis In Progress
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Attack Vector:
Attack Vector Under Analysis
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Privileges Required:
None
No authentication is required for exploitation.
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Scope:
Impact is confined to the initially vulnerable component.
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User Interaction:
None
No user interaction is necessary for exploitation.
CVE-2026-68197 Details
Status: Received on 10 Aug 2026, 13:20 UTC
Last updated: 🕔 19 Aug 2026, 17:20 UTC
Originally published on: 🕐 10 Aug 2026, 13:20 UTC
Time between publication and last update: 9 days
CVSS Release:
CVE-2026-68197 Vulnerability Summary
CVE-2026-68197: In the Linux kernel, the following vulnerability has been resolved: wifi: mwifiex: fix NULL dereference when the AP has HT-cap but no HT-oper mwifiex_tdls_add_ht_oper() gates its follow-the-AP-bandwidth path on bss_desc->bcn_ht_cap being present, but then dereferences a different pointer, bss_desc->bcn_ht_oper: if (ISSUPP_CHANWIDTH40(priv->adapter->hw_dot_11n_dev_cap) && bss_desc->bcn_ht_cap && ISALLOWED_CHANWIDTH40(bss_desc->bcn_ht_oper->ht_param)) bcn_ht_cap and bcn_ht_oper are populated independently while parsing the associated AP's beacon in mwifiex_update_bss_desc_with_ie(): an AP that advertises an HT Capabilities element but no HT Operation element leaves bcn_ht_cap non-NULL and bcn_ht_oper NULL. Setting up a TDLS link to a peer while associated to such an AP then dereferences the NULL bcn_ht_oper and crashes the kernel. Every other bcn_ht_oper user in the driver NULL-checks it first. Guard on the pointer that is actually dereferenced. Found by 0sec automated security-research tooling (https://0sec.ai).
Assessing the Risk of CVE-2026-68197
Access Complexity Graph
The exploitability of CVE-2026-68197 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).
Exploitability Analysis for CVE-2026-68197
No exploitability data is available for CVE-2026-68197.
Understanding AC and PR
A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.
Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.
Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.
CVSS Score Breakdown Chart
Above is the CVSS Sub-score Breakdown for CVE-2026-68197, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.
CIA Impact Analysis
Below is the Impact Analysis for CVE-2026-68197, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.
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Confidentiality:
None
CVE-2026-68197 does not compromise confidentiality.
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Integrity:
None
CVE-2026-68197 does not impact data integrity.
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Availability:
None
CVE-2026-68197 does not affect system availability.
CVE-2026-68197 References
External References
- https://git.kernel.org/stable/c/45011e4d9ba3f2182e5df64be65888044fa20771
- https://git.kernel.org/stable/c/8c2058717fd06f05d421c2d3adf1dff3c3abcda1
- https://git.kernel.org/stable/c/9375a4ea4121625ef27a46b74781cda66a5cc61b
- https://git.kernel.org/stable/c/c3d68e294cbb6a4090bb219d3dcaca85a011809b
- https://git.kernel.org/stable/c/cca4398aa305c22016d1714f388e2fa6ea4e5ad4
- https://git.kernel.org/stable/c/e1770f7410b4232a0267924f99751dc9c5ca31af
- https://git.kernel.org/stable/c/eb42c3c8fd479166c42984728754cd779c71fd60
- https://git.kernel.org/stable/c/fba7eb7b248ea0618235f504158b685d752a153a
CWE Common Weakness Enumeration
Unknown
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