High severity · published Jun 2, 2026
CVE-2026-30649
Buffer Overflow vulnerability in VIVOTEK INC FD8136-VVTK-0300a allows a remote attacker to execute arbitrary code via the set_getparam.cgi component
7.3
CVSS
0.4%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FF
Fd8136 Firmware · Vivotek
0300a · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-30649
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-30649
Third Party Advisory
https://github.com/xchg-rax-rax/vulnerability-research/tree/main/CVE-2026-30649
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A remote buffer overflow vulnerability exists in the /cgi-bin/dido/setdo.cgi endpoint of the admin interface of Vivotek FD8136 cameras running firmware version FD8136-VVTK-0300a