2026-002: Multiple Vulnerabilities in Cisco Products
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
On 25 February 2026, Cisco released security advisories addressing multiple high and critical severity vulnerabilities in Cisco Catalyst SD-WAN controllers and Cisco SD-WAN Manager. If exploited, these vulnerabilities could allow attackers to gain administrative access to compromised systems. It is recommended to capture forensic evidence, hunt for indicators of compromise, and apply updates as soon as possible. One of the vulnerabilities, CVE-2026-20127, is exploited in the wild since 2023.
CSIRTS triage
- What
- Multiple high and critical severity vulnerabilities could allow attackers to gain administrative access.
- Who is affected
- Deployments of Cisco Catalyst SD-WAN controllers and Cisco SD-WAN Manager.
- Urgency
- Immediate action is required as one vulnerability is actively exploited in the wild.
- Action
- Capture forensic evidence and apply updates as soon as possible.
AI-assisted analysis generated from the source advisory — verify against the original.
Details
Original advisory: https://cert.europa.eu/publications/security-advisories/2026-002/
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.
- Exploitation confirmedCVE-2026-20127Already exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 99% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-20127 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- criticalexploitedCisco Catalyst SD-WAN Controller Authentication Bypass Vulnerabilitycisco-psirt
- unknownexploitedCisco Catalyst SD-WAN Controller, Catalyst SD-WAN Manager, and Catalyst SD-WAN Validator Authenticated Privile…cisco-psirt
- unknownexploited[Update] Vulnerability in Cisco Catalyst SD-WAN (February 25, 2026)cert-fr-alerte
- criticalexploitedCVE-2026-20127: Cisco Catalyst SD-WAN Controller and Manager Authentication Bypass Vulnerabilitycisa-kev
Recent advisories for 2026-002
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.
- criticalDrupal core - Moderately critical - Gadget Chain - SA-CORE-2026-002drupal · 2026-04-15
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