EUVD-2026-62568
GHSA-cjg6-c7q5-6vpx
Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
Network-reachable but requires an authenticated low-privilege account (PR:L); Changed scope and High integrity/availability impact, with no confidentiality impact per vendor (C:N), aligning with the disclosed vector.
Primary rating from Vendor (cisco).
CVSS VectorVendor: cisco
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Workload engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities.
The vulnerabilities tracked by CVE-2026-20318 are related to improper input validation issues that are grouped under the Common Weakness Enumeration (CWE) CWE-20.
AnalysisAI
Integrity and availability compromise in Cisco Secure Workload allows an authenticated, remote attacker to abuse improper input validation (CWE-20) across multiple internally discovered flaws fixed in a single hardening release. Because the CVSS scope is Changed, successful exploitation can impact components beyond the initially vulnerable one. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires network reachability to a vulnerable Cisco Secure Workload interface AND a valid authenticated account holding at least low-level privileges (CVSS PR:L) - this is not an unauthenticated flaw, so an attacker must first possess or obtain credentials/session on the platform. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The signals are mixed and warrant careful reading rather than reflexive escalation. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Patch available per vendor advisory: Cisco addressed these issues in a Secure Workload software hardening release, so upgrade to the fixed build identified in the Cisco Security Advisory at https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-csw1-shSvndWP (no exact fix version was included in the available intel - obtain it from that advisory). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: inventory all Cisco Secure Workload instances and versions deployed across the organization, and implement network-layer access restrictions (firewall rules, VPN gating) to limit who can authenticate to the platform. …
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Same weakness CWE-20 – Improper Input Validation
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External POC / Exploit Code
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