CVE-2023-33031: Qualcomm Snapdragon · Classic Buffer Overflow
Affects Qualcomm SnapdragonSource CVE Database V5
Not known to be exploited · CVSS 7.8 High.
Data as of 26 Oct 2026, 06:26 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 1% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 7 Nov 2023
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
AI-suggested
1. Monitor Qualcomm and device vendors for official patches and apply them promptly once released. 2. Implement strict access controls and privilege separation on devices using affected Snapdragon platforms to limit local attacker capabilities. 3. Employ runtime protections such as stack canaries, address space layout randomization (ASLR), and control flow integrity (CFI) where supported by the device firmware. 4. Conduct thorough security audits and code reviews of custom software interacting with the ADSP shared buffer to detect and prevent unsafe buffer operations. 5. Use endpoint detection and response (EDR) solutions capable of detecting anomalous behavior indicative of exploitation attempts on mobile and embedded devices. 6. For automotive and industrial systems, isolate critical components and enforce network segmentation to contain potential compromises. 7. Educate users and administrators about the risks of local privilege escalation vulnerabilities and enforce policies to minimize installation of untrusted software that could exploit this flaw. 8. Maintain an inventory of devices using affected Qualcomm platforms to prioritize patching and monitoring efforts.
Description
CVE-2023-33031 is a high-severity buffer overflow vulnerability in Qualcomm Snapdragon platforms affecting a wide range of mobile, automotive, and IoT devices. The flaw arises from improper size checking when copying data from the ADSP shared buffer to the VOC packet data buffer in the Automotive Audio component, leading to memory corruption. Exploitation requires local privileges and no user interaction, potentially allowing attackers to execute arbitrary code with elevated privileges, compromising confidentiality, integrity, and availability. Although no known exploits are currently reported in the wild, the extensive list of affected Snapdragon versions and platforms increases the risk. European organizations using devices or embedded systems with these Qualcomm components, especially in automotive, mobile, and industrial sectors, face significant security risks. Mitigation requires prompt application of vendor patches once available, strict access controls to limit local privilege escalation, and monitoring for anomalous behavior in affected systems. Countries with strong automotive industries and high adoption of Snapdragon-based devices, such as Germany, France, Italy, and the UK, are particularly at risk. Given the complexity and privileged nature of the vulnerability, the severity is assessed as high, demanding immediate attention from defenders.