CVE-2026-20359Network attack vector

System compromise via insufficiently protected credentials

Published Aug 19, 2026 · Updated Aug 20, 2026

Insufficiently protected credentials in Cisco Crosswork Planning before 7.2.1-SP allow remote authenticated users to compromise the system. Cisco has disclosed only the weakness class and has not published the affected component or how the product stores, exposes, or reuses sensitive credentials. Cisco assigned CVSS 9.9 with low attack complexity and low privileges required, so any reachable deployment that grants an account should be treated as exposed despite the undisclosed mechanism.

CVSS severity9.9
Critical
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficiently protected credentials in Cisco Crosswork Planning before 7.2.1-SP allow remote authenticated users to compromise the system. Cisco has disclosed only the weakness class and has not published the affected component or how the product stores, exposes, or reuses sensitive credentials. Cisco assigned CVSS 9.9 with low attack complexity and low privileges required, so any reachable deployment that grants an account should be treated as exposed despite the undisclosed mechanism.

The record

CVE
CVE-2026-20359
Published
Aug 19, 2026
Updated
Aug 20, 2026
Vendor
ClamAV
Product
Cisco Crosswork Planning
Classifications
CWE-522
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=7.0.0
  2. Affected versionversion=7.0.1
  3. Affected versionversion=7.0.2
  4. Affected versionversion=7.0.3
  5. Affected versionversion=7.0.4
  6. Affected versionversion=7.1.0
  7. Affected versionversion=7.1.1
  8. Affected versionversion=7.1.2
  9. Affected versionversion=7.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ClamAV · Cisco Crosswork Planningversion=7.0.0; version=7.0.1; version=7.0.2; version=7.0.3; version=7.0.4; version=7.1.0; version=7.1.1; version=7.1.2; version=7.2.0

Published CVSS scores

9.9Cisco Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

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-522Insufficiently Protected Credentials

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

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Your stack

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