Strix
58.1K

CVE-2026-74340

HIGHCVSS 8.1/10EPSS 0.18%

Last modified

CVE-2026-74340 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. 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.. EPSS estimates a 0.18% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
8.1/10

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

EPSS Probability
0.18%

7.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 43efa3c0f241e04862be8e6a68ff765d36cde1ba, < 22b0b8572a64362531dd0ed499b75e16282aeb2b; >= 43efa3c0f241e04862be8e6a68ff765d36cde1ba, < 3cf92b44c4fb88a5e8de8733a4494c0956606bca; >= 43efa3c0f241e04862be8e6a68ff765d36cde1ba, < 0907c06dccae9e3c8d5a68eb9014beec73a36e79; >= 43efa3c0f241e04862be8e6a68ff765d36cde1ba, < 64228dfc4247aca178c01e5a37af7d8dcc7a6089; >= 43efa3c0f241e04862be8e6a68ff765d36cde1ba, < 23d210877968657bd07e1a517e0b516db20a1d80; >= 43efa3c0f241e04862be8e6a68ff765d36cde1ba, < f03782f7f41f2afee5076a1ef08ced5649218771; >= 43efa3c0f241e04862be8e6a68ff765d36cde1ba, < f987efff29a5fe45320ea5991c9d5cb98b676953; >= 43efa3c0f241e04862be8e6a68ff765d36cde1ba, < df2187acfca6c6cca372c5d35f42394d9c270b09
LinuxLinux4.11

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-74340?
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.
How severe is CVE-2026-74340?
CVE-2026-74340 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.
How do I fix CVE-2026-74340?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

Related CVEs from 2026

View all 2026CVEs →

Are you affected by CVE-2026-74340?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST