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TI-2026-85243 Aliases CVE-2026-122020GHSA-vf69-9xg9-6cc3

NST Labs Tech Nstbrowser stopAllBrowsers denial of service

Priority LOW 24CWE-404Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-404.

Summary

A flaw in NST Labs Tech Nstbrowser up to 1.2.1 affects the stopAllBrowsers function of the Local Agent Management Service. The flaw is an improper resource shutdown or release (CWE-404), and a remote attacker can use it to cause a denial of service. A public exploit is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-11-07

Description from the CNA

A security flaw has been discovered in NST Labs Tech Nstbrowser up to 1.2.1. The affected element is the function stopAllBrowsers of the file /api/agent/browser/stopAll of the component Local Agent Management Service. Performing a manipulation results in denial of service. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Why it matters now

EPSS 0.00319 25th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
NST Labs TechNstbrowser1.2.0; 1.2.1—No fix listedCNA
  • Nstbrowser VendorNST Labs Tech Affected 1.2.0; 1.2.1 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:nst_labs_tech:nstbrowser:*:*:*:*:*:*:*:*——NST Labs Tech
  • cpe:2.3:a:nst_labs_tech:nstbrowser:*:*:*:*:*:*:*:* Versions — — ·NST Labs Tech

Remediation

The sources list no fixed version for NST Labs Tech Nstbrowser.

Written with Claude Haiku 5.5 from the sources below · 2026-11-07

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-11-04 Threatist record created from CVE-2026-122020
  2. 2026-11-05 Alias added: GHSA-vf69-9xg9-6cc3
  3. 2026-11-07 Affected versions changed · Red Hat
  4. 2026-11-07 CVSS score added · Red Hat

References

Exploit 1

Other 1

  • TI-2026-85248 Information disclosure in NST Labs Tech Nstbrowser Local Agent API CVSS 4.0MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences