How severe is CVE-2026-30649?

CVE-2026-30649 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-30649 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-30649?

CVE-2026-30649 affects Vivotek Fd8136 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-30649?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-30649 have an EU (EUVD) identifier?

Yes. CVE-2026-30649 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33966.

When was CVE-2026-30649 published?

CVE-2026-30649 was published on 2026-06-02 and last updated on 2026-07-05.

CVE-2026-30649

CVE-2026-30649 is a high-severity vulnerability in Vivotek Fd8136 Firmware with a CVSS 3.x base score of 7.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-121.

Key facts

Severity: High (CVSS 3.x base score 7.3)
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-33966
Weakness: CWE-121
Affected product: Vivotek Fd8136 Firmware
Published: 2026-06-02
Last modified: 2026-07-05

Description

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

Frequently asked questions

What is 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
How severe is CVE-2026-30649?: CVE-2026-30649 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-30649 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-30649?: CVE-2026-30649 affects Vivotek Fd8136 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-30649?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-30649 have an EU (EUVD) identifier?: Yes. CVE-2026-30649 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33966.
When was CVE-2026-30649 published?: CVE-2026-30649 was published on 2026-06-02 and last updated on 2026-07-05.

References

https://github.com/xchg-rax-rax/vulnerability-research/tree/main/CVE-2026-30649

EU advisories (EUVD)

http://vivotek.com

Affected products (1)

cpe:2.3:o:vivotek:fd8136_firmware:0300a:*:*:*:*:*:*:*

More vulnerabilities in Vivotek Fd8136 Firmware

CVE-2018-14496 — Critical (CVSS 9.8): Vivotek FD8136 devices allow remote memory corruption and remote code execution because of a stack-based buffer…
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