CVE-2026-76504
The record is as the index held it on 2026-10-18. The KEV listing and the EPSS score were read on 2026-10-25. The score is dated to the day it became true. The KEV state is dated to that read. Changes between those two dates are not all shown.
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Cisco Catalyst SD-WAN Manager System Account Authorization Bypass Vulnerability
rank 87 = 40 + 25 + 6 + 6 + 10
rank@v1 · act now
Someone is already using it
CISA KEV catalog · public proof-of-concept · FIRST EPSS
EPSS 0.38928 · CISA KEV listed · without this subject the record ranks 47
What it costs you if it fires
NVD CVSS base score, then the CNA's own
CVSS 9.8, from the CNA · without this subject the record ranks 62
It is getting worse, not staying still
FIRST EPSS series, rescorings and bad loads removed
rose on 2026-10-25 · without this subject the record ranks 81
How much of the world it touches
NVD CPE configurations
6 products in the CPE ranges · without this subject the record ranks 81
Someone else already set the date
CISA KEV remediation due date
CISA remediation date held · without this subject the record ranks 77
Hindsight · the state
Foresight · where to check next
No weakness class or product neighbourhood is held for this record, so this index cannot name anywhere to check next. That is an absence in the record, not a finding about the software.
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Check your stack in the mirror · True as of 25 Oct 2026
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Harm, if it fires from the vector and the weakness
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CISA KEV & Federal Remediation Deadline from the record and CISA
The fix, and how long it's been waiting.
Show full CISA required action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Exploit Status & Known PoCs a ladder, not a score
Current rung: Exploited in the wild · CISA KEV listed, 2026-09-30.
Affected & Fixed Versions as published
Show all 6 published ranges
A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.
$1.94M = $4.99M incident cost x 1 exposure x 0.38928 likelihood
udv@v1 · unaudited · wrong for you until you say what you run
$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.
Attack path
What it is stated by the CNA
A vulnerability in the API session-based authentication management of Cisco Catalyst SD-WAN Manager could allow an unauthenticated, remote attacker to access an affected system with privileges of the admin user. This vulnerability is due to improper handling of URI encoding in an HTTP request, which allows the request to bypass an authentication rule that is intended to restrict access to a specific API endpoint. An attacker could exploit this vulnerability by sending a crafted HTTP request to the API of the affected system. A successful exploit could allow the attacker to bypass authentication and gain access to the API as the admin user. receipt
NVD's analysis a second authority
- weakness
- CWE-177
- affected versions
- cisco catalyst sd-wan manager < 20.9.10.1; cisco catalyst sd-wan manager >= 20.12 < 20.12.8.2; cisco catalyst sd-wan manager >= 20.15 < 20.15.6.1; and 3 more, listed in full below
- also scored by
- psirt@cisco.com 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
check it yourself sec.cloudapps.cisco.com receipt
Dated events
Movement the material steps
Show all 4 observations
4 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt
Siblings and hubs
Records related to this one
None. No alias set, and nothing in the corpus cites this identifier or shares its product family within 60 days.
Browse the index from here
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What usually comes next
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