CVE-2021-1906
Published: November 3, 2021
Official Description
Multiple Qualcomm chipsets contain a detection of error condition without action vulnerability when improper handling of address deregistration on failure can lead to new GPU address allocation failure.
CISA KEV Advisory
Qualcomm Multiple Chipsets Detection of Error Condition Without Action Vulnerability
Multiple Qualcomm chipsets contain a detection of error condition without action vulnerability when improper handling of address deregistration on failure can lead to new GPU address allocation failure.
Apply updates per vendor instructions.
Risk Analysis
Multiple Qualcomm chipsets are affected by a detection of error condition without action vulnerability. Improper handling of address deregistration on failure can lead to new GPU address allocation failure. This high-severity flaw is actively exploited in the wild, posing a significant risk.
This vulnerability is actively exploited in the wild and is listed in CISA's KEV catalog, indicating confirmed real-world impact.
Users of devices with affected Qualcomm chipsets should apply all available security updates. Keep your device's firmware and operating system updated to mitigate this risk.
Technical Analysis
CVE-2021-1906 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-2021-1906 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.
Affected Vendors & Products
Exploit & PoC Resources
All References (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2021-1906 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