CVE-2026-52656
This vulnerability allows attackers to run arbitrary code on certain SJCAM AllWinner Tech devices by sending a specially crafted FEX file. The flaw is in the firmware of SJ4000-Air V1.4C and earlier, as well as Whitelabel versions up to 1.4C. It can be exploited remotely without any user interaction.
No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.
Who is affected
SJCAM AllWinner Tech SJ4000-Air firmware V1.4C and earlier, and Whitelabel devices running the same firmware version or earlier.
Real-world impact
An attacker could take full control of the affected device, installing malware, stealing data, or using the device as part of a botnet.
Why this severity
The CVSS score of 9.8 reflects that the flaw can be exploited over the network (AV:N), requires no special privileges (PR:N), needs no user action (UI:N), and gives the attacker complete confidentiality, integrity, and availability compromise (C:H/I:H/A:H).
What to do about it
No official fix or mitigation is documented in the sources yet. Monitor the vendor advisory and apply the patch as soon as it is released.
No fix documented in sources
Timeline
- Jul 20, 2026 · 12d agoPublishedDisclosed and added to the National Vulnerability Database.
- Jul 23, 2026 · 10d agoAdvisory updatedThe NVD record was last revised.