Enterprise Chat And EmailApplication · Cisco
CVE-2024-20484
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 · uneditedA vulnerability in the External Agent Assignment Service (EAAS) feature of Cisco Enterprise Chat and Email (ECE) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient validation of Media Routing Peripheral Interface Manager (MR PIM) traffic that is received by an affected device. An attacker could exploit this vulnerability by sending crafted MR PIM traffic to an affected device. A successful exploit could allow the attacker to trigger a failure on the MR PIM connection between Cisco ECE and Cisco Unified Contact Center Enterprise (CCE), leading to a DoS condition on EAAS that would prevent customers from starting chat, callback, or delayed callback sessions. Note: When the attack traffic stops, the EAAS process must be manually restarted to restore normal operation. To restart the process in the System Console, choose Shared Resources > Services > Unified CCE > EAAS, then click Start.
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 confidenceThis vulnerability exists in the External Agent Assignment Service (EAAS) feature of Cisco Enterprise Chat and Email (ECE). Insufficient validation of Media Routing Peripheral Interface Manager (MR PIM) traffic allows an unauthenticated remote attacker to send specially crafted MR PIM packets that trigger a failure in the MR PIM connection between Cisco ECE and Cisco Unified Contact Center Enterprise (CCE), causing a denial of service that prevents chat, callback, and delayed callback sessions.
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
Enterprise Chat And EmailApplication
< 12.5(1)es9>= 12.6(1), < 12.6(1)es9CVSS 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
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 installed Cisco ECE versionAccess the Cisco ECE administration console or run the version command (typically via 'eceVersion' or through the web UI at Administration > System > Version). Compare the installed version to the affected ranges: versions < 12.5(1)es9 OR >= 12.6(1) but < 12.6(1)es9.Affected if Installed version falls within < 12.5(1)es9 or >= 12.6(1) but < 12.6(1)es9
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Confirm EAAS feature is deployedCheck if the External Agent Assignment Service (EAAS) is configured in the Cisco ECE environment. This is typically visible in the ECE admin console under Application Routing or in the MR PIM configuration settings.Affected if EAAS feature is enabled and configured in the environment
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Verify MR PIM connectivity to CCECheck the status of Media Routing Peripheral Interface Manager (MR PIM) connections between Cisco ECE and Cisco Unified Contact Center Enterprise (CCE). This is usually viewable in the ECE admin console under Peripheral Gateways or in the MR PIM status logs.Affected if MR PIM is actively configured and connecting to CCE
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Review MR PIM logs for anomalous trafficExamine MR PIM logs and connection status for signs of connection failures, malformed packets, or unusual traffic patterns that could indicate exploitation attempts. Look for sudden MR PIM disconnections or errors.Affected if MR PIM logs show repeated connection failures or unexpected packet errors since the CVE disclosure date
You are affected if your Cisco ECE version is in the vulnerable range AND the EAAS feature with MR PIM connectivity to CCE is enabled in your environment.
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 · scoped12.512.6
Apply the Cisco vendor patch when available. In the interim, implement network-level filtering to restrict MR PIM traffic to trusted sources at the network perimeter.
12.5(1)es9 or 12.6(1)es9 (depending on which major version train you are on)
- 1. Identify the current Cisco Enterprise Chat and Email (ECE) version installed on the affected system
- 2. If running version 12.5(x) where x < es9, plan upgrade to version 12.5(1)es9 or later
- 3. If running version 12.6(x) where x < es9, plan upgrade to version 12.6(1)es9 or later
- 4. Schedule a maintenance window as upgrade will require downtime
- 5. Take a complete backup of the ECE system including database and configuration
- 6. Test the upgrade in a non-production environment first
- 7. During maintenance window, run the upgrade installer for the appropriate fixed version
- 8. After upgrade completes, verify the EAAS service starts successfully
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Enterprise Chat And Email
Scoped from the published advisory
- Consultation6.0 h
- Implementation4.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,608.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-20484 — 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-2024-20484 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