Vulnerability · Published Oct 23, 2026 · Assigned by NCSC.ch

CVE-2026-114353DJI CrystalSky ZS600C USB-gadget backdoor allows root command execution

High 7.0

In plain English

A high-severity security flaw in CrystalSky ZS600C from DJI. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities).

Severity (CVSS 4.0)7.0High

Exploit odds (30 days)0.2%top 95.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Hidden functionality (undocumented backdoor) in the root-privileged 'assistant' daemon in DJI CrystalSky ZS600C firmware v0.3.9.7 through v0.6.6.9 on Android allows a physically-present attacker with USB access to execute arbitrary OS commands as root by sending the hard-coded magic string 'dji26656677' to the USB-gadget serial interface (/dev/ttyGS0), after which each subsequent line is passed to system().

Affected products (as reported)

Vendor	Product	Versions
DJI	CrystalSky ZS600C	0.3.9.7 – through 0.6.6.9

Weakness: CWE-912 · Vector: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/S:P

References

CVE-2026-114353 third-party-advisory