CVE-2023-33063: Qualcomm Multiple Chipsets Use-After-Free Vulnerability

How to check if you are exposed to CVE-2023-33063

1. Find every Qualcomm Multiple Chipsets system you or your clients run, including ones exposed to the internet. Those come first: CISA only lists flaws attackers are already using.
2. Compare each version with the fixed versions in the vendor advisory below. Where no fix exists yet, apply the vendor’s mitigation or take the system off the internet.
3. Run a credentialed vulnerability scan to catch the systems you missed, then check that the next scan no longer reports CVE-2023-33063.

US federal agencies had to fix this by 2023-12-26. Everyone else should treat that deadline as a guide: if it has passed, this is overdue.

Affected versions

Versions the National Vulnerability Database lists as vulnerable to CVE-2023-33063. Check the vendor advisory for the exact fixed builds before you sign anything off.

NVD lists 24 more affected products; see the full record on NVD.

Timeline

1. 2023-12-05 · Published in the National Vulnerability Database
2. 2023-12-05 · Added to CISA's Known Exploited Vulnerabilities catalog, the same day it was published
3. 2023-12-26 · Fix-by date for US federal agencies, passed 1,041 days ago

Vendor advisories and fixes

• https://git.codelinaro.org/clo/la/kernel/msm-5.15/-/commit/2643808ddbedfaabbb334741873fb2857f78188a
• https://git.codelinaro.org/clo/la/kernel/msm-4.14/-/commit/d43222efda5a01c9804d74a541e3c1be9b7fe110

Weakness type

• CWE-416

More exploited Qualcomm vulnerabilities

CISA lists 12 exploited Qualcomm vulnerabilities. The closest matches:

• CVE-2026-21385Qualcomm Multiple Chipsets Memory Corruption VulnerabilityAdded 2026-03-03
• CVE-2025-27038Qualcomm Multiple Chipsets Use-After-Free VulnerabilityAdded 2025-06-03
• CVE-2025-21480Qualcomm Multiple Chipsets Incorrect Authorization VulnerabilityAdded 2025-06-03
• CVE-2025-21479Qualcomm Multiple Chipsets Incorrect Authorization VulnerabilityAdded 2025-06-03
• CVE-2023-33107Qualcomm Multiple Chipsets Integer Overflow VulnerabilityAdded 2023-12-05
• CVE-2023-33106Qualcomm Multiple Chipsets Use of Out-of-Range Pointer Offset VulnerabilityAdded 2023-12-05
• CVE-2022-22071Qualcomm Multiple Chipsets Use-After-Free VulnerabilityAdded 2023-12-05
• CVE-2021-1906Qualcomm Multiple Chipsets Detection of Error Condition Without Action VulnerabilityAdded 2021-11-03

Keep going

• All exploited CVEs
• Check another CVE
• What is CISA KEV?
• What is EPSS?

Sources: CISA Known Exploited Vulnerabilities catalog (version 2026.10.30); EPSS data from FIRST.org; CVSS and descriptions from the NIST National Vulnerability Database. Checked 2026-11-01. This product uses the NVD API but is not endorsed or certified by the NVD.