🟡 Medium | Source: Microsoft Security Response Center
CVE-2026-53386 is a bounds-checking vulnerability in the Linux kernel’s TI ADS1298 ADC driver (iio: adc: ti-ads1298), which affects systems running this driver — including Azure Linux-based infrastructure. Without a proper bounds check on the pga_settings index, an attacker or malicious process could potentially access out-of-bounds memory, leading to information disclosure or system instability. Microsoft has published this advisory through the MSRC, indicating relevance to Azure environments.
Security Architect’s Take: Review whether any Azure Linux VMs or AKS node pools are running kernels that include the ti-ads1298 ADC driver, and prioritise kernel patching to a version that includes the bounds-check fix. In most cloud environments this driver is unlikely to be loaded, but confirming its absence or ensuring kernel updates are applied promptly is prudent hygiene.
Original advisory: CVE-2026-53386 iio: adc: ti-ads1298: add bounds check to pga_settings index