CVE-2026-97518
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: reject duplicate wiphy cipher suite entries Duplicate entries in wiphy->cipher_suites do not describe any additional capability, but cfg80211 currently accepts them and leaves individual consumers to deal with them. One such consumer is the WEXT compatibility code, which appends a WEP key length for each WEP cipher entry it sees. Repeated WEP entries can therefore overflow the fixed iw_range::encoding_size array returned by SIOCGIWRANGE. Reject duplicate cipher suite entries in wiphy_register() instead. This keeps the cipher suite invariant in one place and makes malformed wiphy descriptions fail early with -EINVAL, rather than relying on a single cfg80211 user to handle duplicates correctly.
Affected versions
Linux kernel versions
2.6.32
and later are affected. Fixed in
6.12.111,
6.18.53,
7.2
and their respective stable series.
References
3 totalFrequently asked questions
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What is CVE-2026-97518?
CVE-2026-97518 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 2.6.32 onward and has been patched in 6.12.111, 6.18.53 and 7.2. CVE-2026-97518 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-97518?
Yes. CVE-2026-97518 has been patched. Fixed versions include 6.12.111, 6.18.53 and 7.2. If you are running Linux kernel 2.6.32 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-97518 actively exploited?
No. CVE-2026-97518 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.