CVE-2022-20808Network attack vector

Service interruption via simultaneous device registrations

Published Jul 6, 2022 · Updated Nov 6, 2024

Resource exhaustion in Cisco Smart Software Manager On-Prem 8 and earlier allows remote authenticated users to interrupt service. The device-registration handler incorrectly processes multiple simultaneous registration requests, exhausting resources until the service becomes unavailable. A valid authenticated registration context is required, and the documented impact is limited to loss of availability on the affected appliance.

CVSS severity7.7
High
EPSS probability0.99%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Resource exhaustion in Cisco Smart Software Manager On-Prem 8 and earlier allows remote authenticated users to interrupt service. The device-registration handler incorrectly processes multiple simultaneous registration requests, exhausting resources until the service becomes unavailable. A valid authenticated registration context is required, and the documented impact is limited to loss of availability on the affected appliance.

The record

CVE
CVE-2022-20808
Published
Jul 6, 2022
Updated
Nov 6, 2024
Vendor
ClamAV
Product
Cisco Smart Software Manager On-Prem
Classifications
CWE-400, T1499.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 6, 2022CVE publishedPublication date reported by the CVE source.
  2. Nov 6, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ClamAV · Cisco Smart Software Manager On-Premversion=n/a

Published CVSS scores

7.7CiscoCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:X/RL:X/RC:X
6.5NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.0NVDAV:N/AC:L/Au:S/C:N/I:N/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499.002Service Exhaustion Flood

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo