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TI-2019-13619 Aliases CVE-2019-18894GHSA-8g22-628c-4vg2

In Avast Premium Security 19.8.2393, attackers can send a specially crafted request to…

Priority LOW 38CWE-78Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-78.

Summary

In Avast Premium Security 19.8.2393, attackers can send a specially crafted request to the local web server run by Avast Antivirus on port 27275 to support Bank Mode functionality. A flaw in the processing of a command allows execution of arbitrary OS commands with the privileges of the currently logged in user. This allows for example attackers who compromised a browser extension to escape from the browser sandbox.

Why it matters now

EPSS 0.01776 78th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:avast:premium_security:19.8.2393:*:*:*:*:*:*:*19.8.2393VulnerableAvast
  • cpe:2.3:a:avast:premium_security:19.8.2393:*:*:*:*:*:*:* Versions 19.8.2393 Vulnerable ·Avast

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-18894
  2. 2026-10-03 Alias added: GHSA-8g22-628c-4vg2

References

Exploit 1

  • TI-2023-22493 Link following in Avast Premium Security CVSS 3.0HIGH 7.8
  • TI-2023-22492 Incorrect authorization in Avast Premium Security CVSS 3.1HIGH 7.8
  • TI-2022-11552 An arbitrary file write vulnerability in Avast Premium Security before v21.11.2500 (build… CVSS 3.1HIGH 7.1
  • TI-2022-11553 Multiple DLL hijacking vulnerabilities via the components instup.exe and wsc_proxy.exe in… CVSS 3.1MEDIUM 6.5
  • TI-2021-08781 Link following in Avast Premium Security CVSS 3.1MEDIUM 6.1

Sources

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