Unauthenticated access to critical functions
Published Aug 19, 2026 · Updated Aug 19, 2026
Missing authentication in Cisco Crosswork Planning before 7.2.1-SP allows remote attackers to reach critical functions via network requests. Cisco has disclosed only that one or more security-sensitive functions lacked an authentication check; no public advisory, CVE record, or patch detail names the affected endpoint, component, or code path. Exposure is not configuration-dependent because Cisco lists Crosswork Planning among vulnerable products regardless of device configuration, but the public record does not disclose whether exploitation yields direct code execution, data access, or service interruption beyond the maximum-case CVSS 10.0 rating for this grouped CWE-306 issue.
Summary
What happened
Missing authentication in Cisco Crosswork Planning before 7.2.1-SP allows remote attackers to reach critical functions via network requests. Cisco has disclosed only that one or more security-sensitive functions lacked an authentication check; no public advisory, CVE record, or patch detail names the affected endpoint, component, or code path. Exposure is not configuration-dependent because Cisco lists Crosswork Planning among vulnerable products regardless of device configuration, but the public record does not disclose whether exploitation yields direct code execution, data access, or service interruption beyond the maximum-case CVSS 10.0 rating for this grouped CWE-306 issue.
The record
- CVE
- CVE-2026-20357
- Published
- Aug 19, 2026
- Updated
- Aug 19, 2026
- Vendor
- ClamAV
- Product
- Cisco Crosswork Planning
- Classifications
- CWE-306
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 19, 2026CVE publishedPublication date reported by the CVE source.
- Aug 19, 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.
- Affected versionversion=7.0.0
- Affected versionversion=7.0.1
- Affected versionversion=7.0.2
- Affected versionversion=7.0.3
- Affected versionversion=7.0.4
- Affected versionversion=7.1.0
- Affected versionversion=7.1.1
- Affected versionversion=7.1.2
- Affected versionversion=7.2.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
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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