CVE-2026-30652Public exploitNetwork attack vector

Authenticated root code execution via oversized POST body

Published Jun 2, 2026 · Updated Jun 2, 2026

Stack buffer overflow in VIVOTEK FD8136 firmware FD8136-VVTK-0300a allows remote authenticated users to execute code as root. The set_getdido.cgi binary reads a raw POST body into an approximately 0xc4-byte stack buffer without validating its length, overwriting the saved link register. HTTP Basic credentials for the camera interface are required; exploitation redirects control flow to attacker-supplied shellcode with full device privileges.

CVSS severity8.8
High
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack buffer overflow in VIVOTEK FD8136 firmware FD8136-VVTK-0300a allows remote authenticated users to execute code as root. The set_getdido.cgi binary reads a raw POST body into an approximately 0xc4-byte stack buffer without validating its length, overwriting the saved link register. HTTP Basic credentials for the camera interface are required; exploitation redirects control flow to attacker-supplied shellcode with full device privileges.

The record

CVE
CVE-2026-30652
Published
Jun 2, 2026
Updated
Jun 2, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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