CVE-2026-20191: A vulnerability in Cisco Catalyst Center could allow an unauthenticated, remote attacker to read arbitrary files from a restricted container. This vulnerability is due to

highCVSS 7.5CVE-2026-20191

A vulnerability in Cisco Catalyst Center could allow an unauthenticated, remote attacker to read arbitrary files from a restricted container. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to read arbitrary files from a restricted container of the affected device.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: high — CVSS 7.5
Published: 2026-07-01
Last updated: 2026-07-01
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-20191

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-201910.76% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 51% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-20191	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

highCisco Catalyst Center Arbitrary File Read Vulnerabilitycisco-psirt
medium[UPDATE] [medium] Cisco Catalyst Center: Vulnerability Allows Information Disclosurecert-bund
unknownNCSC-2026-0218 [1.00] [M/H] Vulnerability fixed in Cisco Catalyst Centerncsc-nl
unknownMultiple vulnerabilities in Cisco products (July 2, 2026)cert-fr-avis
highCisco Advance Notification for Publication of July 1, 2026, Security Advisoriescisco-psirt

Recent advisories for Cisco Catalyst Center

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

highCisco Catalyst Center Arbitrary File Read Vulnerabilitycisco-psirt · 2026-07-06
medium[UPDATE] [medium] Cisco Catalyst Center: Vulnerability Allows Information Disclosurecert-bund · 2026-07-03
unknownNCSC-2026-0218 [1.00] [M/H] Vulnerability fixed in Cisco Catalyst Centerncsc-nl · 2026-07-02