CVE-2020-12441
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 · uneditedDenial-of-Service (DoS) in Ivanti Service Manager HEAT Remote Control 7.4 due to a buffer overflow in the protocol parser of the ‘HEATRemoteService’ agent. The DoS can be triggered by sending a specially crafted network packet.
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 · moderate confidenceA buffer overflow vulnerability exists in the protocol parser of the HEATRemoteService agent in Ivanti Service Manager HEAT Remote Control 7.4. An unauthenticated attacker can send a specially crafted network packet to trigger the overflow, causing a denial of service condition.
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< 2020.1= 7.4CVSS 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
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/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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Identify if HEATRemoteService is runningCheck running processes or Windows services for 'HEATRemoteService' or 'HEAT Remote Service' entryAffected if The HEATRemoteService process or Windows service is present and running on the system
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Check Ivanti Service Manager HEAT Remote Control versionLocate the installation directory for HEAT Remote Control 7.4 and check version information in the application properties or registryAffected if The installed version is exactly 7.4 (matches the affected version)
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Check Ivanti Desktop and Server Management versionCheck the installed version of Ivanti Desktop&server Management through installed programs list, application properties, or registryAffected if The installed version is earlier than 2020.1 (any version < 2020.1)
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Determine network exposure of HEATRemoteServiceReview firewall rules and network configuration to determine if the HEATRemoteService port is accessible from untrusted networksAffected if The HEATRemoteService agent is exposed to untrusted or external network traffic without firewall isolation
A system is affected if it runs HEATRemoteService from Ivanti Service Manager HEAT Remote Control 7.4 or Ivanti Desktop&server Management versions earlier than 2020.1, and the service is network-accessible to untrusted attackers.
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 · scoped2020.1
Apply vendor patches when available. If no patch exists, restrict network access to the HEATRemoteService agent by isolating it behind a firewall or disabling unnecessary exposure to untrusted networks.
Desktop & Server Management: 2020.1 or later; Service Manager HEAT Remote Control: version beyond 7.4 (contact vendor for exact fixed release)
- 1. Identify the specific Ivanti product in use (Desktop & Server Management or Service Manager HEAT Remote Control)
- 2. For Desktop & Server Management: Upgrade to version 2020.1 or later
- 3. For Service Manager HEAT Remote Control: Upgrade to a version beyond 7.4 (contact Ivanti support for specific fixed version)
- 4. After upgrading, verify the HEATRemoteService agent is running the patched version
- 5. Test remote control functionality to ensure the upgrade did not break legitimate operations
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-12441 — 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-2020-12441 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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- 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