critical Known exploitedREV. 01
CVE-2026-76504Cisco Catalyst SD-WAN Manager — Admin Authentication Bypass
Cisco Catalyst software-defined wide area network (SD-WAN) Manager mishandles address encoding in web requests. An unauthenticated remote attacker can slip past an authentication rule and reach the programming interface as the admin user.
Read the risk
THE VITAL STATS- CVSS score
- 9.8/ 10 CVSS v3.1
- EPSS probability
- 38.9% Likelihood of exploitation
- Attack complexity
- Low Conditions needed to exploit
- Known exploited
- Yes — CISA KEV
- CVE published
- 2026-09-30
- Added to KEV
- 2026-09-30
- CISA due date
- 2026-10-03
- Exploit published
- Not recorded
- Confidence
- high
- Kill chain
- initial access
- MITRE ATT&CK
- —
- Severity
- critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attacker needsNetwork access to the Manager's programming interface. No account is needed.
Behind the card
3 REFERENCES- 01CVE recordNVD recordnvd.nist.gov
- 02CISACISA Known Exploited Vulnerabilities catalogcisa.gov
- 03Vendor advisorysec.cloudapps.cisco.comsec.cloudapps.cisco.com
Field-level provenanceTRACE THE SOURCES +
Which source supports each field, when it was retrieved, and who extracted it.
| Fields | Source | Retrieved | Extractor | Confidence |
|---|---|---|---|---|
| cvss, exploitation.attack_complexity, exploitation.exploit_available, published_at, references | nvd.nist.gov | 2026-11-05 | scrty-crds-pipeline/0.1 | high |
| exploitation.known_exploited, exploitation.kev_added, exploitation.kev_due | cisa.gov | 2026-11-05 | scrty-crds-pipeline/0.1 | high |
| epss | api.first.org | 2026-11-05 | scrty-crds-pipeline/0.1 | high |
| title, subtitle, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisites | nvd.nist.gov | 2026-11-05 | claude-code | high |
Printing history
THE RECORD- r1Initial base card
History unavailable — this build has no Git history for the card file.