dbcve.org
Stack-based Buffer OverflowWeakness · CWE-121

CVE-2026-12488

MEDIUM · 6.2 CVSS v3.1 Published 2026-06-24
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
66/100
Remediation priority · Elevated
Remotely reachable

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A memory corruption vulnerability exists in the GV-Cloud functionality of GeoVision GV-VMS V20 20.0.2.  A specially crafted network request can lead to a denial of service. An attacker can impersonate the legitimate server to trigger this vulnerability.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · low confidence

Memory corruption vulnerability in the GV-Cloud component of GeoVision GV-VMS V20 20.0.2 allows an attacker impersonating the legitimate server to send specially crafted network requests, causing a denial of service.

MitigationApply vendor-provided patch for GV-VMS V20 20.0.2; implement TLS/certificate validation for GV-Cloud communications to prevent server impersonation attacks.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
High
Privileges
High
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:N/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Verify GeoVision GV-VMS installation
    Check installed programs or registry for GeoVision GV-VMS V20 presence
    Affected if GV-VMS V20 is not installed or version differs from 20.0.2
  2. Confirm exact GV-VMS version
    Use About or version information in GV-VMS to identify the exact version number
    Affected if Version is exactly 20.0.2
  3. Identify GV-Cloud component status
    Check GV-VMS configuration or services for GV-Cloud module/component status
    Affected if GV-Cloud component is enabled and running
  4. Inspect GV-Cloud network communication settings
    Review GV-Cloud network configuration for TLS/certificate validation settings
    Affected if TLS is disabled or certificate validation is not enforced for GV-Cloud connections
  5. Review GV-Cloud server configuration
    Check configured server endpoints for GV-Cloud in the application settings
    Affected if GV-Cloud connects to a server without proper authentication verification

Environment is affected if GV-VMS V20 version 20.0.2 is installed with GV-Cloud component enabled and TLS/certificate validation is not enforced for GV-Cloud network communications.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply vendor-provided patch for GV-VMS V20 20.0.2; implement TLS/certificate validation for GV-Cloud communications to prevent server impersonation attacks.

Have this fixed Scoped from the published advisory
  • Consultation6.0 h
  • Implementation12.0 h
  • Testing6.0 h
  • Review / QA4.0 h
28.0 hours of engineering $4,980
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-12488 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data