CVE-2026-68411
Vulnerability Scoring
Analysis In Progress
CVE-2026-68411 Vulnerability Analysis & Exploit Details
CVE-2026-68411
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-2026-68411 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-2026-68411 Vulnerability Summary
CVE-2026-68411: In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211_hwsim: clamp virtio RX length before skb_put hwsim_virtio_rx_work() passes the virtqueue used-ring length reported by the device straight to skb_put() on a fixed-size receive skb. A backend reporting a length larger than the skb tailroom drives skb_put() past the buffer end and hits skb_over_panic() -- a host-triggerable guest panic (denial of service). Clamp the length to the skb's available room before skb_put(). A conforming device never reports more than the posted buffer size, so valid frames are unaffected; a truncated over-report then fails the length/header checks in hwsim_virtio_handle_cmd() and is dropped, so truncating rather than dropping here cannot be turned into a parsing problem.
Assessing the Risk of CVE-2026-68411
Access Complexity Graph
The exploitability of CVE-2026-68411 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-2026-68411
No exploitability data is available for CVE-2026-68411.
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-2026-68411, 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-2026-68411, 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-2026-68411 does not compromise confidentiality.
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Integrity:
None
CVE-2026-68411 does not impact data integrity.
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Availability:
None
CVE-2026-68411 does not affect system availability.
CVE-2026-68411 References
External References
- https://git.kernel.org/stable/c/10a2b430f8f06ae14b9590b6f6faa6b588ef0654
- https://git.kernel.org/stable/c/5779e4a33e1666ddfeba43e96e29c4a9e5254ff0
- https://git.kernel.org/stable/c/6dc76371a9a360c29de00df5b11563102d9d675a
- https://git.kernel.org/stable/c/7f9d678b870fca8eaf1d46fa915cba0b1d5b387a
- https://git.kernel.org/stable/c/82c5a30a66e2a7337d99476c67d6fc1a99c4250e
- https://git.kernel.org/stable/c/909573d6a9b67354fc0515952574564e7c909c62
- https://git.kernel.org/stable/c/99dc05c75acc3c8cde8d89c5371f4b569de5ac62
- https://git.kernel.org/stable/c/fade308845c89f784da8a6780c1e77258488f1b6
CWE Common Weakness Enumeration
Unknown
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