THREATPORT/VULNERABILITY/CVE-2026-20148
MEDIUM SEVERITY

CVE-2026-20148

Identity Services Engine vulnerability

CVSS
4.9
EPSS
6.9%
EPSS pct
93th
Exploited
No known
A vulnerability in Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to perform path traversal attacks on the underlying operating system and read arbitrary files. To exploit this vulnerability, the attacker must have valid administrative credentials. This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected system. A successful exploit could allow the attacker to access sensitive files on the affected system.
Affected vendor
Cisco
Affected product
Identity Services Engine
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Weakness type (CWE)
Published
2026-04-15

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring high privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 6.9% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 93% of all scored CVEs.

Check your external exposure to CVE-2026-20148

  • Confirm whether Cisco Identity Services Engine is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2026-20148.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2026-20148

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2026-20148 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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