CVE-2026-64445
Out‑of‑bounds read in rtl8723bs kernel driver via crafted 802.11 auth frames
Is CVE-2026-64445 being exploited?
Not confirmed. CVE-2026-64445 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.32% probability of exploitation in the next 30 days.
How severe is CVE-2026-64445?
CVE-2026-64445 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-64445?
Yes. A fix has been recorded for CVE-2026-64445. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-64445 affect?
CVE-2026-64445 affects Linux kernel (staging rtl8723bs driver), Devices using Realtek RTL8723BS Wi‑Fi, Embedded Linux systems with rtl8723bs. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-64445?
Install kernel update that fixes rtl8723bs; restrict untrusted Wi‑Fi until patched.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote attacker can send crafted auth frames to trigger OOB read, causing info disclosure or kernel crash (DoS) on affected Linux systems.
Patch when possible
- affected>= 554c0a3abf216c991c5ebddcdb2c08689ecd290b and < 665e1ecb68b4e8419604e70a33f02d1c8b0222c6
- affected>= 554c0a3abf216c991c5ebddcdb2c08689ecd290b and < 87cccc2a767f17dcab71e3b9fe5ae29b5516c5ce
- affected>= 554c0a3abf216c991c5ebddcdb2c08689ecd290b and < c9000c93078e5c0a5a651b077c0ec92a4bc7d580
- affected>= 554c0a3abf216c991c5ebddcdb2c08689ecd290b and < 1f6c9d255bdda41216b6e34c96aa2b1abee0bb84
- affected>= 554c0a3abf216c991c5ebddcdb2c08689ecd290b and < 3e44a7665f3abd320a80d9c64ee4a93317041b8b
- affected>= 554c0a3abf216c991c5ebddcdb2c08689ecd290b and < 64ec4192d9c10e96922245d4a6747304cc76b19d
- affected>= 554c0a3abf216c991c5ebddcdb2c08689ecd290b and < d90b9f39f375c9826ef145605dfe97765d0ecb91
- affected>= 554c0a3abf216c991c5ebddcdb2c08689ecd290b and < a1fc19d61f661d47204f095b593de507884849f7
- affected4.12
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.