CVE-2026-64536staging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop The loop in is_ap_in_tkip() iterates over IEs without verifying that enough bytes remain before dereferencing the IE header or its payload: - pIE->element_id and pIE->length are read without checking that i + sizeof(*pIE) <= ie_length, so a truncated IE at the end of the buffer causes an OOB read. - For WLAN_EID_VENDOR_SPECIFIC the code compares pIE->data + 12, which requires pIE->length >= 16. For WLAN_EID_RSN it compares pIE->data + 8, requiring pIE->length >= 12. Neither requirement is checked. Add the missing IE header and payload bounds checks and guard each data access with an explicit pIE->length minimum, matching the pattern established in update_beacon_info().
- CVSS
- 8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 554c0a3abf216c991c5ebddcdb2c08689ecd290b before ea3809f7e20bdff282b8cc1e94937d5fb9fb32c7; from 554c0a3abf216c991c5ebddcdb2c08689ecd290b before d2055332297e24c63fffda943ef7a5eefc0a6019; 554c0a3abf216c991c5ebddcdb2c08689ecd290b builds before 6f26cc55affd9d7f88ae2f5d12db4ecf9072c209; 554c0a3abf216c991c5ebddcdb2c08689ecd290b builds before 204b22c8df115370037248859bf0fa62db73a396; from 554c0a3abf216c991c5ebddcdb2c08689ecd290b before a6105ea8ca6ebbc04beaf3bcbf7dbb5985f5d395; from 554c0a3abf216c991c5ebddcdb2c08689ecd290b before 4380b3860d887a13555ff024a58dfc05b490dfd6; 554c0a3abf216c991c5ebddcdb2c08689ecd290b builds before 3bf39f711ff27c64be8680a8938bcc5001982e81 | CNA record |
References
- https://git.kernel.org/stable/c/ea3809f7e20bdff282b8cc1e94937d5fb9fb32c7
- https://git.kernel.org/stable/c/d2055332297e24c63fffda943ef7a5eefc0a6019
- https://git.kernel.org/stable/c/6f26cc55affd9d7f88ae2f5d12db4ecf9072c209
- https://git.kernel.org/stable/c/204b22c8df115370037248859bf0fa62db73a396
- https://git.kernel.org/stable/c/a6105ea8ca6ebbc04beaf3bcbf7dbb5985f5d395
- https://git.kernel.org/stable/c/4380b3860d887a13555ff024a58dfc05b490dfd6
- https://git.kernel.org/stable/c/3bf39f711ff27c64be8680a8938bcc5001982e81
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.