CVE-2026-30649: Buffer Overflow vulnerability in VIVOTEK INC FD8136-VVTK-0300a allows a remote attacker to execute arbitrary c

Routine

HIGH 7.3REMOTEMITIGATE

CVE-2026-30649 is a high-severity flaw (CVSS 7.3) affecting fd8136 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer Overflow vulnerability in VIVOTEK INC FD8136-VVTK-0300a allows a remote attacker to execute arbitrary code via the set_getparam.cgi component

Why this priority

High severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.3 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 69%)
CISA exploited list	No
Weakness	CWE-121
Published	2026-06-02
Last modified	2026-07-22

Publisher (CNA): MITRE · Vendor: vivotek

Last updated 2026-07-22 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-02 16:16 UTCPublished CVE record published
2026-07-22 19:10 UTCUpdated Record last modified

vivotek fd8136 firmware MITIGATE

Affected: 0300a

Fixed in: no fixed release known

Safe to downgrade to: a release before 0300a

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-30649?

fd8136 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-30649 being exploited?

CVE-2026-30649 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-30649 affect?

CVE-2026-30649 affects fd8136 firmware. Severity is high (CVSS 7.3). Buffer Overflow vulnerability in VIVOTEK INC FD8136-VVTK-0300a allows a remote attacker to execute arbitrary code via the set_getparam.cgi component

How urgent is CVE-2026-30649?

Priority 38/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-30650 HIGH 8.8 MITIGATE A post-authentication remote buffer overflow vulnerability exists in the /cgi-bin/admin/eventtask.cgi endpoint
CVE-2026-30652 HIGH 8.8 MITIGATE A remote buffer overflow vulnerability exists in the /cgi-bin/dido/setdo.cgi endpoint of the admin interface o
CVE-2026-35718 MEDIUM 6.5 MITIGATE A path traversal vulnerability in the /admin/downloadMedias.cgi endpoint of VIVOTEK INC FD8136-VVTK firmware 0
CVE-2026-35716 MEDIUM 6.3 MITIGATE A stack-based buffer overflow in the motion_privacy.cgi binary in VIVOTEK FD8136 firmware FD8136-VVTK-0300a al
CVE-2026-35717 MEDIUM 6.3 MITIGATE A stack-based buffer overflow in the export_language.cgi binary in VIVOTEK FD8136 firmware FD8136-VVTK-0300a a

References

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