CVE-2026-64536

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Source
https://cve.org/CVERecord?id=CVE-2026-64536
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-64536.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-64536
Downstream
Related
Published
2026-07-27T06:36:04Z
Modified
2026-08-18T03:31:22Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
Summary
staging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop
Details

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().

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64536.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
554c0a3abf216c991c5ebddcdb2c08689ecd290b
Fixed
ea3809f7e20bdff282b8cc1e94937d5fb9fb32c7
Fixed
d2055332297e24c63fffda943ef7a5eefc0a6019
Fixed
6f26cc55affd9d7f88ae2f5d12db4ecf9072c209
Fixed
204b22c8df115370037248859bf0fa62db73a396
Fixed
a6105ea8ca6ebbc04beaf3bcbf7dbb5985f5d395
Fixed
4380b3860d887a13555ff024a58dfc05b490dfd6
Fixed
3bf39f711ff27c64be8680a8938bcc5001982e81

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-64536.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.12.0
Fixed
5.15.212
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.178
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.145
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.96
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.39
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.1.4

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-64536.json"