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PatchSiren cyber security CVE debrief

CVE-2026-18755 GeoVision Inc. CVE debrief

A DLL hijacking vulnerability in GeoVision GV-ASManager allows a local attacker with write access to an unsafe search directory to execute arbitrary code. This vulnerability enables an attacker to execute code under the security privileges of the GV-ASManager process by placing a crafted dynamic-link library (DLL) file into the application search path prior to the legitimate library. The vulnerability affects GeoVision GV-ASManager installations, particularly those with local access to the system. Defenders should assess exposure and prioritize verification and remediation efforts.

Vendor
GeoVision Inc.
Product
GV-ASManager
CVSS
HIGH 7.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-04
Original CVE updated
2026-09-09
Advisory published
2026-08-04
Advisory updated
2026-09-09

Who should care

Defenders responsible for GeoVision GV-ASManager installations, particularly those with local access to the system, should assess exposure and prioritize verification and remediation efforts. This includes reviewing and updating GV-ASManager to the latest version if available, monitoring for suspicious DLL loads, and implementing compensating controls.

Why it matters

CVE-2026-18755 is a high-severity DLL hijacking vulnerability in GeoVision GV-ASManager that allows local attackers to execute arbitrary code. Defenders should prioritize verification of GV-ASManager installations, monitoring for suspicious activity, and remediation efforts to prevent potential exploitation.

  • Potential code execution under the security privileges of the GV-ASManager process
  • Verification of GV-ASManager installations for vulnerable configurations
  • Monitoring for suspicious DLL loads to detect potential exploitation attempts

Technical summary

The vulnerability allows a local attacker with write access to an unsafe search directory to execute arbitrary code by placing a crafted dynamic-link library (DLL) file into the application search path prior to the legitimate library. This enables code execution under the security privileges of the GV-ASManager process. The vulnerability affects GeoVision GV-ASManager installations, and defenders should prioritize verification of GV-ASManager installations, monitoring for suspicious activity, and remediation efforts to prevent potential exploitation.

Defensive priority

High-priority verification of GV-ASManager installations and monitoring for suspicious DLL loads

Recommended defensive actions

  • Verify GV-ASManager installations for vulnerable configurations
  • Monitor for suspicious DLL loads and implement compensating controls
  • Review and update GV-ASManager to the latest version if available
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
  • Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, but additional information on affected versions and remediation is limited. The vulnerability has a high CVSS score of 7.3, indicating a high severity level. Defenders should verify GV-ASManager installations for vulnerable configurations and monitor for suspicious DLL loads.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-18755 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-18755

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-18755 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-18755

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source reference

    Unverified legacy reference

    URL: https://www.geovision.com.tw/cyber_security.php

    0df08a0e-a200-4957-9bb0-084f562506f9

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.