CVE-2020-11261
Published: December 1, 2021
Official Description
Memory corruption due to improper check to return error when user application requests memory allocation of a huge size in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables
CISA KEV Advisory
Qualcomm Multiple Chipsets Improper Input Validation Vulnerability
Memory corruption due to improper check to return error when user application requests memory allocation of a huge size in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables
Apply updates per vendor instructions.
Risk Analysis
Various Snapdragon platforms are susceptible to memory corruption due to an improper check when a user application requests a huge memory allocation. This high-severity flaw is confirmed to be actively exploited and is in CISA's KEV catalog. The EPSS score of 0.01142 indicates a low but present likelihood of exploitation.
This vulnerability is actively being exploited in the wild and is listed in CISA's KEV catalog. Exploitation occurs when a user application requests an excessively large memory allocation.
Apply all available security updates for devices running affected Snapdragon platforms. Ensure applications are from trusted sources and monitor for unusual memory usage patterns.
Technical Analysis
CVE-2020-11261 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2020-11261 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Exploit & PoC Resources
All References (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2020-11261 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1