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Highest advisory severityHigh 1 vendor · 1 advisory

CVE-2026-20155

CVE-2026-20155: 1 tracked advisory record across Cisco. Compare vendor sources and published fix guidance.

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

NVD detail CVE.org

Vendor advisory comparison

Cisco

1 advisory
  • Advisory severityHigh8.0

    High [CVE-2026-20155] Cisco Evolved Programmable Network Manager Improper Authorization Vulnerability

    cisco-sa-epnm-improp-auth-mUwFWUU3Source published Source updated

    A vulnerability in the web-based management interface of Cisco Evolved Programmable Network Manager (EPNM) could allow an authenticated, remote attacker with low privileges to access sensitive information that they are not authorized to access. This vulnerability is due to improper authorization checks on a REST API endpoint of an affected device. An attacker could exploit this vulnerability by querying the affected endpoint. A successful exploit could allow the attacker to view session information of active Cisco EPNM users, including users with administrative privileges, which could result in the affected device being compromised. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at…

    Related products — impact not confirmed
    • Evolved Programmable Network Manager (EPNM)
    Source-reported affected versions
    • Scope: This vulnerability affects Cisco EPNM, regardless of device configuration.
    • 8.0 and earlier — Migrate to a fixed release
    • Release 8.1 (first fixed: 8.1.2)
    Source-reported fixed versions
    • 8.1.2
    Mitigation guidance
    • Upgrade to the first fixed release for your train per the Fixed Releases table in this advisory.
    • Release 8.0 and earlier: migrate to a fixed release.
    • Release 8.1: upgrade to 8.1.2.
    Workarounds
    • There are no workarounds that address this vulnerability.
    Full advisory and evidenceOpen source bulletin

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