Answer in brief
CVE-2026-74340 records a High severity (CVSS 8.1) vulnerability in wifi: wcn36xx: fix OOB read from firmware count in PRINT_REG_INFO indication. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=43efa3c0f241e04862be8e6a68ff765d36cde1ba <22b0b8572a64362531dd0ed499b75e16282aeb2b || >=43efa3c0f241e04862be8e6a68ff765d36cde1ba <3cf92b44c4fb88a5e8de8733a4494c0956606bca || >=43efa3c0f241e04862be8e6a68ff765d36cde1ba <0907c06dccae9e3c8d5a68eb9014beec73a36e79 || >=43efa3c0f241e04862be8e6a68ff765d36cde1ba <64228dfc4247aca178c01e5a37af7d8dcc7a6089 || >=43efa3c0f241e04862be8e6a68ff765d36cde1ba <23d210877968657bd07e1a517e0b516db20a1d80 || >=43efa3c0f241e04862be8e6a68ff765d36cde1ba <f03782f7f41f2afee5076a1ef08ced5649218771 || >=43efa3c0f241e04862be8e6a68ff765d36cde1ba <f987efff29a5fe45320ea5991c9d5cb98b676953 || >=43efa3c0f241e04862be8e6a68ff765d36cde1ba <df2187acfca6c6cca372c5d35f42394d9c270b09 | 22b0b8572a64362531dd0ed499b75e16282aeb2b, 3cf92b44c4fb88a5e8de8733a4494c0956606bca, 0907c06dccae9e3c8d5a68eb9014beec73a36e79, 64228dfc4247aca178c01e5a37af7d8dcc7a6089, 23d210877968657bd07e1a517e0b516db20a1d80, f03782f7f41f2afee5076a1ef08ced5649218771, f987efff29a5fe45320ea5991c9d5cb98b676953, df2187acfca6c6cca372c5d35f42394d9c270b09 |
| Linux/Linuxgeneric | 4.11 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
In the Linux kernel, the following vulnerability has been resolved: wifi: wcn36xx: fix OOB read from firmware count in PRINT_REG_INFO indication The firmware-controlled rsp->count field is used as the loop bound for indexing into the flexible rsp->regs[] array without validation against the message length. A count exceeding the actual data causes out-of- bounds reads from the heap-allocated message buffer. Add a check that count fits within the received message.
Quoted source text, attributed separately from HOL analysis.