CVE-2023-33063
Published: December 5, 2023
Official Description
Multiple Qualcomm chipsets contain a use-after-free vulnerability due to memory corruption in DSP Services during a remote call from HLOS to DSP.
CISA KEV Advisory
Qualcomm Multiple Chipsets Use-After-Free Vulnerability
Multiple Qualcomm chipsets contain a use-after-free vulnerability due to memory corruption in DSP Services during a remote call from HLOS to DSP.
Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Risk Analysis
This vulnerability affects multiple Qualcomm chipsets, involving a use-after-free condition caused by memory corruption during remote calls to DSP services. Its inclusion in CISA's KEV catalog and an EPSS score of 0.00440 indicate that this is a high-priority vulnerability with confirmed active exploitation, requiring immediate attention.
This flaw is actively exploited in the wild, as confirmed by its presence in CISA's KEV catalog. The vulnerability stems from memory corruption during remote calls from the High-Level Operating System (HLOS) to the Digital Signal Processor (DSP).
Users of Qualcomm-powered devices should apply all available security updates from their device manufacturers. Regularly checking for and installing system updates is crucial to mitigate this risk.
Technical Analysis
CVE-2023-33063 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-2023-33063 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-2023-33063 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