CVE-2026-63932

A flaw was found in the Linux kernel's mhz19b driver, which handles Winsen MHZ19B CO2 sensors. The mhz19breceivebuf function does not properly validate the size of incoming serial replies before copying them into a fixed-size buffer. A remote attacker could exploit this by sending an oversized...

SUSE CVE-2026-63932

In the Linux kernel, the following vulnerability has been resolved: iio: chemical: mhz19b: reject oversized serial replies mhz19breceivebuf appends each serdev chunk into the fixed MHZ19BCMDSIZE receive buffer and advances bufidx by len without checking that the chunk fits in the remaining space....

Linux Distros Unpatched Vulnerability : CVE-2026-63932

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: iio: chemical: mhz19b: reject oversized serial replies mhz19breceivebuf appends each serdev...

CVE-2026-63932

In the Linux kernel, the following vulnerability has been resolved: iio: chemical: mhz19b: reject oversized serial replies mhz19breceivebuf appends each serdev chunk into the fixed MHZ19BCMDSIZE receive buffer and advances bufidx by len without checking that the chunk fits in the remaining space....

CVE-2026-63932

In the Linux kernel, the following vulnerability has been resolved: iio: chemical: mhz19b: reject oversized serial replies mhz19breceivebuf appends each serdev chunk into the fixed MHZ19BCMDSIZE receive buffer and advances bufidx by len without checking that the chunk fits in the remaining space....

CVE-2026-63932 iio: chemical: mhz19b: reject oversized serial replies

In the Linux kernel, the following vulnerability has been resolved: iio: chemical: mhz19b: reject oversized serial replies mhz19breceivebuf appends each serdev chunk into the fixed MHZ19BCMDSIZE receive buffer and advances bufidx by len without checking that the chunk fits in the remaining space....

CVE-2026-63932

In the Linux kernel IIO chemical mhz19b driver, mhz19b_receive_buf() appends serdev chunks into a fixed MHZ19B_CMD_SIZE buffer and advances buf_idx without ensuring fit, enabling a potential overflow of st->buf from a large callback. The patch resets the reply state before each command and rej...

EUVD-2026-45705

In the Linux kernel, the following vulnerability has been resolved: iio: chemical: mhz19b: reject oversized serial replies mhz19breceivebuf appends each serdev chunk into the fixed MHZ19BCMDSIZE receive buffer and advances bufidx by len without checking that the chunk fits in the remaining space....

PT-2026-61249

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the mhz19b receive buf function where serial data chunks are appended to the fixed MHZ19B CMD SIZE receive buffer without verifying if the chunk fits in the remaining...