# Identify the updater before blocking a vulnerable application version

> Can a vulnerable application still update when its main executable is blocked?

- Canonical URL: https://update.dsesecurity.com/updates/dse-20260909-366-identify-the-updater-before-blocking-a-vulnerable-application-version/
- Publisher: Detection Systems & Engineering (DSE Security)
- Author: DSE Security Editorial Team
- Published: 2026-09-10T00:25:50+00:00
- Modified: 2026-09-10T02:01:56+00:00
- Last reviewed by DSE: 2026-09-09
- Resource type: Guide
- DSE priority: Information
- Topics: Cybersecurity, IT
- Reading time: 2 minutes

## What you need to know

Can a vulnerable application still update when its main executable is blocked?

## Potentially affected

Supported non-Microsoft applications on Windows 11 using Defender Vulnerability Management block mitigations.

## DSE recommendation

Determine whether updating uses a separate executable before approving a temporary vulnerable-version block.

## Article

## Source facts

Defender Vulnerability Management blocks vulnerable application versions through executable file-hash indicators. Microsoft explains that a separate updater executable is not blocked by the main application’s block, but some applications need the main executable to update. Those designs require a different remediation path. [Microsoft Learn](https://learn.microsoft.com/en-us/defender-vulnerability-management/tvm-block-vuln-apps).

The mitigation requires active-mode Defender Antivirus, cloud-delivered protection and the Allow or block file feature. Passive mode and EDR in block mode do not provide this execution blocking. Microsoft applications, operating-system recommendations and macOS/Linux application recommendations are excluded. Blocking is a best-attempt mitigation, not a guarantee. [Microsoft Learn](https://learn.microsoft.com/en-us/defender-vulnerability-management/tvm-block-vuln-apps).

## Applicability

Review supported non-Microsoft applications on Windows 11 using Defender Vulnerability Management block mitigations. Confirm the current application and component prerequisites before deciding that the mitigation is available.

## DSE recommendation

DSE recommends identifying the actual update executable and its dependency on the blocked program before activating the temporary control. Ask the application owner to provide an approved update method that preserves needed local data. If ordinary updating depends on the blocked binary, arrange a controlled remediation path with security approval rather than instructing users to bypass the block routinely. Keep mitigation ownership linked to the permanent fix.

## Verification

Test the approved updater with a representative installation while the intended vulnerable version remains blocked. Confirm the new version and the application’s required business function afterward. Inspect the scoped indicators and remediation activity rather than judging success from a toast notification. Record any update failure separately from a blocking failure, and close the temporary mitigation only through the approved remediation decision.

## Official references

[Microsoft Learn: Block vulnerable applications](https://learn.microsoft.com/en-us/defender-vulnerability-management/tvm-block-vuln-apps).

## Primary reference

- Name: Block vulnerable applications with Microsoft Defender Vulnerability Management - Microsoft Defender Vulnerability Management | Microsoft Learn
- Authority: Microsoft Learn
- URL: https://learn.microsoft.com/en-us/defender-vulnerability-management/tvm-block-vuln-apps
- Source publication date: Not stated by the source

## Citation and use

Preferred citation: “Identify the updater before blocking a vulnerable application version,” DSE Security, https://update.dsesecurity.com/updates/dse-20260909-366-identify-the-updater-before-blocking-a-vulnerable-application-version/
Publishing principles: https://update.dsesecurity.com/updates/dse-updates-editorial-methodology/
Usage and citation policy: https://update.dsesecurity.com/usage/
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