CVE-2022-33259
CWE-120Published: April 13, 2023· Updated: Jun 17, 2026
Official Description
Memory corruption due to buffer copy without checking the size of input in modem while decoding raw SMS received.
Risk Analysis
Qualcomm modem firmware contains a memory corruption vulnerability caused by improper size checking when decoding raw SMS messages. This critical flaw could allow remote attackers to cause a crash or execute arbitrary code.
No public exploit is known, and it is not in the CISA KEV. The vulnerability is remotely exploitable.
Apply firmware updates provided by the device manufacturer. Ensure modem software is kept up to date.
Technical Analysis
CVE-2022-33259 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (2)
Quick Facts
Related CVEs (CWE-120)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-33259 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts