CVE-2025-11493
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 · uneditedThe ConnectWise Automate Agent does not fully verify the authenticity of files downloaded from the server, such as updates, dependencies, and integrations. This creates a risk where an on-path attacker could perform a man-in-the-middle attack and substitute malicious files for legitimate ones by impersonating a legitimate server. This risk is mitigated when HTTPS is enforced and is related to CVE-2025-11492.
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 · high confidenceThe ConnectWise Automate Agent fails to properly verify the authenticity and integrity of files downloaded from the server, including updates, dependencies, and integrations. An on-path attacker can perform a man-in-the-middle attack to substitute malicious files for legitimate ones by impersonating the server. The vulnerability exists because the agent does not fully validate certificates or file integrity when downloading resources.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 2025.9CVSS 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
- Adjacent
- Complexity
- High
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/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 checksWork through these to decide whether this CVE applies to you.
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Verify ConnectWise Automate Agent is installedCheck for the Automate Agent service running on the system or look in Add/Remove Programs for ConnectWise AutomateAffected if The agent software is present on the system
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Identify the installed versionOpen the Automate Agent console or check the version displayed in the agent interface, typically found in Help > About or the agent status windowAffected if The version is listed as lower than 2025.9
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Check if HTTPS is enforced for server communicationsInspect the agent configuration files or settings for the server connection URL. Look for http:// versus https:// in the server address configurationAffected if The server connection uses HTTP instead of HTTPS
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Verify certificate validation is enabledReview the agent configuration or registry settings for SSL/TLS certificate validation options. Check if 'Verify SSL Certificates' or similar setting is enabledAffected if Certificate validation is disabled or set to not verify
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Confirm file integrity checking is configuredExamine the agent settings or configuration files for file hash or signature verification options when downloading updates or integrationsAffected if File integrity verification is disabled or not configured
You are affected if you have ConnectWise Automate Agent installed with a version below 2025.9 AND your server communications are not using enforced HTTPS with proper certificate and file integrity validation enabled.
Generated from the published advisory. Verify against your own configuration.
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.
dbcve · scoped2025.9
Enforce HTTPS for all server communications to prevent MITM attacks. Additionally, implement proper certificate chain validation and file hash/signature verification to ensure downloaded files are authentic and untampered.
2025.9
- Ensure you have a complete backup of your ConnectWise Automate server and database before proceeding
- Download the ConnectWise Automate 2025.9 agent from the official ConnectWise portal or trusted distribution channel
- Review the official ConnectWise Automate 2025.9 release notes for any specific upgrade prerequisites or instructions
- Apply the upgrade to your Automate server following standard ConnectWise upgrade procedures
- After upgrading, verify that HTTPS is enforced for all agent-server communications to ensure the mitigation is active
- Test that agent updates, dependencies, and integrations are functioning correctly post-upgrade
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-11493 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-11493 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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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.
- 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