High 7.1Published Apr 24, 2026

CVE-2026-31626staging: rtl8723bs: initialize le_tmp64 in rtw_BIP_verify()

Updated under an hour ago (Oct 28, 2026, 11:00 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: initialize le_tmp64 in rtw_BIP_verify() Initialize le_tmp64 to zero in rtw_BIP_verify() to prevent using uninitialized data. Smatch warns that only 6 bytes are copied to this 8-byte (u64) variable, leaving the last two bytes uninitialized: drivers/staging/rtl8723bs/core/rtw_security.c:1308 rtw_BIP_verify() warn: not copying enough bytes for '&le_tmp64' (8 vs 6 bytes) Initializing the variable at the start of the function fixes this warning and ensures predictable behavior.

CVSS: 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/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: Modified
Record last updated: Aug 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 554c0a3abf216c991c5ebddcdb2c08689ecd290b before 6792624d933146e2757b07092e93ad915cb58930; from 554c0a3abf216c991c5ebddcdb2c08689ecd290b before 51532c7c1d357145f4ac561648499f7a6847f739; 554c0a3abf216c991c5ebddcdb2c08689ecd290b builds before 9e911eead187240193516edf55a0e1ab3425aa5b; from 554c0a3abf216c991c5ebddcdb2c08689ecd290b before c65ee4d3be5df395e48afbcd0946dd5fce4338a9; from 554c0a3abf216c991c5ebddcdb2c08689ecd290b before d5b8f5f8d6fc09a8af5ed139c688660f578ed732; from 554c0a3abf216c991c5ebddcdb2c08689ecd290b before b487a7754d874230299d5a9c2710ec4df8b2ed8a; from 554c0a3abf216c991c5ebddcdb2c08689ecd290b before c2026c6b603ebec52f55015496703fe79077accf; from 554c0a3abf216c991c5ebddcdb2c08689ecd290b before ef74ce5f0bc0e53ce702d8a794f3957884a26efc; and 1 more ranges	CNA record
linux linux_kernel linux:linux_kernel	from 4.12 before 6.6.136; from 6.7 before 6.12.83; from 6.13 before 6.18.24; from 6.19 before 6.19.14; from 7.0 before 7.0.1	NVD

References

References

https://git.kernel.org/stable/c/6792624d933146e2757b07092e93ad915cb58930
https://git.kernel.org/stable/c/51532c7c1d357145f4ac561648499f7a6847f739
https://git.kernel.org/stable/c/9e911eead187240193516edf55a0e1ab3425aa5b
https://git.kernel.org/stable/c/c65ee4d3be5df395e48afbcd0946dd5fce4338a9	patch
https://git.kernel.org/stable/c/d5b8f5f8d6fc09a8af5ed139c688660f578ed732	patch
https://git.kernel.org/stable/c/b487a7754d874230299d5a9c2710ec4df8b2ed8a	patch
https://git.kernel.org/stable/c/c2026c6b603ebec52f55015496703fe79077accf	patch
https://git.kernel.org/stable/c/ef74ce5f0bc0e53ce702d8a794f3957884a26efc	patch
https://git.kernel.org/stable/c/8c964b82a4e97ec7f25e17b803ee196009b38a57	patch

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.