highclosedpatched

Cisco Catalyst SD-WAN Manager: Cisco Catalyst SD-WAN Manager Hex Encoding Vulnerability

› Cisco Catalyst SD-WAN Manager

last updated Sep 30, 2026

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started: Sep 30, 2026
closed: Sep 30, 2026
CVEs: 1
sources: 3

## summary

Cisco Catalyst SD-WAN Manager contains a hex encoding vulnerability that could allow an unauthenticated, remote attacker to access an affected system with privileges of the admin user due to improper handling of URI encoding in an HTTP request. Added to CISA KEV on 2026-09-30.

severity: Actively exploited (CISA KEV)

## cve ids[1]

CVE-2026-76504

## affected

See vendor advisory / CISA notes (versions not always listed in KEV feed)

## fixed in

See vendor advisory linked in sources

## timeline[1]

Sep 30, 2026
CISA added CVE-2026-76504 to the KEV catalog (due 2026-10-03).

## advisories[3]

## notes & caveats

Derived from CISA KEV JSON feed catalogVersion 2026.10.21. Exact affected/fixed version strings are not always in the KEV record — verify against the vendor advisory URL. startedAt uses dateAdded (exploitation may have begun earlier).

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