CVE-2026-64443
CVE CVE-2026-64443EUVD EUVD-2026-48787Published 2026-07-25T08:51:15.000ZLast changed 2026-08-05T12:42:07.000ZCVSS 8.1
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix OOB read in update_beacon_info() IE loop The IE parsing loop in update_beacon_info() advances by (pIE->length + 2) each iteration but only guards on i < len. When a malicious AP sends a Beacon whose last IE has only one byte remaining in the frame (the element_id byte lands at len-1), the loop reads pIE->length from one byte past the allocated receive buffer. Additionally, even when the header bytes are in bounds, pIE->length itself can extend the data window beyond len, passing a truncated IE to the handler functions. Add two guards at the top of the loop body: 1. Break if fewer than sizeof(*pIE) bytes remain (can't read header). 2. Break if the IE's declared data extends past len. Also replace i += (pIE->length + 2) with i += sizeof(*pIE) + pIE->length for consistency with the sizeof(*pIE) guards added above.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux 4.12; patch: 6.12.96; patch: 6.6.145; patch: 7.1.4; 554c0a3abf216c991c5ebddcdb2c08689ecd290b <bd953d52d587d42365e399b96c52dbdb13032070; patch: 0; 554c0a3abf216c991c5ebddcdb2c08689ecd290b <9193c34f75fd9e1ea8a590d7cced464c3380dc29; 554c0a3abf216c991c5ebddcdb2c08689ecd290b <b5cc2f999927f69723ca53f1f2a3aa37dbeda907; patch: 6.18.39; patch: 6.1.178; 554c0a3abf216c991c5ebddcdb2c08689ecd290b <5e8db4cff5b45c7c4edc8ae3f302027c3bb32b25; 554c0a3abf216c991c5ebddcdb2c08689ecd290b <69f174a0673b6b7a29b851adb60bc450cdc0ecc4; 554c0a3abf216c991c5ebddcdb2c08689ecd290b <ed51de4a86e173c3b0ef78e039c2e49e08b11f16; patch: 5.15.212; 554c0a3abf216c991c5ebddcdb2c08689ecd290b <6dd5e8c3011ebabf417257d7f07901a7c4311539; patch: 7.2-rc3
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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