CVE-2026-31626
What it is
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.
At a glance
- Exploitability
- Can be exploited from the same network segment without logging in. High risk of service disruption.
- Exploit odds
- 0.3% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.3% in the next 30 days (EPSS).
- Severity: 7.1 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.3% · EPSS, next 30 days
- Weakness
- CWE-908
- Record status
- Modified
Affected
- Linux Kernel < 6.6.136
- Linux Kernel < 6.12.83
- Linux Kernel < 6.18.24
- Linux Kernel < 6.19.14
- Linux Kernel < 7.0.1
Attack profile CVSS 3.1 · 7.1
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- Low
- Availability
- High
Raw vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-31626.md and follow it. Check whether this project is affected by CVE-2026-31626. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/8c964b82a4e97ec7f25e17b803ee196009b38a57
- https://git.kernel.org/stable/c/b487a7754d874230299d5a9c2710ec4df8b2ed8a
- https://git.kernel.org/stable/c/c2026c6b603ebec52f55015496703fe79077accf
- https://git.kernel.org/stable/c/c65ee4d3be5df395e48afbcd0946dd5fce4338a9
- https://git.kernel.org/stable/c/d5b8f5f8d6fc09a8af5ed139c688660f578ed732
- https://git.kernel.org/stable/c/ef74ce5f0bc0e53ce702d8a794f3957884a26efc
References
- https://git.kernel.org/stable/c/51532c7c1d357145f4ac561648499f7a6847f739
- https://git.kernel.org/stable/c/6792624d933146e2757b07092e93ad915cb58930
- https://git.kernel.org/stable/c/8c964b82a4e97ec7f25e17b803ee196009b38a57
- https://git.kernel.org/stable/c/9e911eead187240193516edf55a0e1ab3425aa5b
- https://git.kernel.org/stable/c/b487a7754d874230299d5a9c2710ec4df8b2ed8a
- https://git.kernel.org/stable/c/c2026c6b603ebec52f55015496703fe79077accf
- https://git.kernel.org/stable/c/c65ee4d3be5df395e48afbcd0946dd5fce4338a9
- https://git.kernel.org/stable/c/d5b8f5f8d6fc09a8af5ed139c688660f578ed732
- https://git.kernel.org/stable/c/ef74ce5f0bc0e53ce702d8a794f3957884a26efc