CVE-2023-33063
Qualcomm Multiple Chipsets Use-After-Free Vulnerability
Qualcomm Multiple Chipsets
Memory corruption in DSP Services during a remote call from HLOS to DSP.
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 5 December 2023. US federal agencies were required to remediate it by 26 December 2023.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 0.7%, which is higher than 52.3% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Frequently asked questions
Is CVE-2023-33063 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2023-33063.
What does CVE-2023-33063 affect?
CVE-2023-33063 affects Qualcomm Multiple Chipsets. Memory corruption in DSP Services during a remote call from HLOS to DSP.
How severe is CVE-2023-33063?
CVE-2023-33063 is rated HIGH with a CVSS base score of 7.8. EPSS puts the probability of exploitation in the next 30 days at 0.7%, higher than 52.3% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 26 December 2023.
How should organisations respond to CVE-2023-33063?
Apply the vendor patch for Qualcomm Multiple Chipsets as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.