CVE-2026-20320 KEV
7.5
HIGH · CVSS 3.1 · EPSS 0.4% (pctl 33)
Patch first
On CISA KEV — known exploited in the wild, due 2026-11-24.
Description
A vulnerability in the Open Client Interface (OCI) XML Parser of Cisco BroadWorks could allow an unauthenticated, remote attacker to read sensitive configuration information on an affected system. This vulnerability exists because XML entries are improperly parsed due to external entity resolution being allowed by default. An attacker could exploit this vulnerability by sending a crafted XML message to the Open Client Interface – Provisioning (OCI-P) service. A successful exploit could allow the attacker to view sensitive files from the filesystem with the privileges of the Cisco BroadWorks user.
Scoring
| CVSS | 7.5 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| EPSS | 0.39% — more likely to be exploited than 33% of all CVEs |
| Weakness | CWE-611 |
| On CISA KEV | yes — remediate by 2026-11-24 |
| Public exploit | none known |
| Published | 2026-08-19 |
| Last modified | 2026-11-10 |
CISA KEV
| Name | Cisco BroadWorks Improper Restriction of XML External Entity Reference Vulnerability |
|---|---|
| Added | 2026-11-10 |
| Due | 2026-11-24 |
| Vendor / product | Cisco / BroadWorks |
| Ransomware use | none reported |
Affected (4)
| Vendor | Product |
|---|---|
| cisco | broadworks application delivery platform |
| cisco | broadworks application server |
| cisco | broadworks profile server |
| cisco | broadworks xtended services platform |
References
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