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CVE-2026-20193VulnerabilityPublished

Cisco Identity Services Engine Authentication Bypass Vulnerabilities

Affects CiscoSource GCVE Database

0
Authoritative record:CVE-2026-20193· Medium 4.3

Not known to be exploited · CVSS 4.3 Medium.

Data as of 27 Oct 2026, 02:09 UTC

CVSS 3.1 base score
4.3Medium
How severe the flaw is on the 0–10 CVSS scale.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
CiscoCisco Identity Services Engine SoftwareAffected
  • =3.3.0
  • =3.4.0
  • =3.5.0
Fixed in–

AI-suggested

The advisory mentions a Fixed Software section for information on patched releases, indicating that fixes exist. Users should consult the official Cisco advisory for specific remediation steps and apply the updates accordingly. No further mitigation guidance is provided in the current data.

Description

Multiple authentication bypass vulnerabilities have been identified in Cisco Identity Services Engine (ISE) affecting all device configurations at the time of publication. These vulnerabilities could allow an attacker to bypass authentication mechanisms. Specific affected software versions are not detailed in the available information. No CVSS score or detailed impact metrics are provided.

References

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