SARA / Free Tools / CVE / CVE-2026-20320

CVE-2026-20320 — Cisco BroadWorks Improper Restriction of XML External Entity Reference Vulnerabi

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

CVSS
7.5 HIGH
EPSS
0.98% (top 37.30%)
CWE
CWE-611
Published
2026-08-19T17:18:40.433
Last modified
2026-11-13T21:17:46.853
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CISA KEV — Actively Exploited
Added to KEV
2026-11-10
BOD 22-01 due
2026-11-24
Ransomware use
Unknown

01What is this vulnerability?

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…

02Affected products

VendorProductVersions
ciscobroadworks_application_delivery_platform< ri.2026.07
ciscobroadworks_application_server< 2026.0
ciscobroadworks_profile_server< 2026.07
ciscobroadworks_xtended_services_platform< 2026.07

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2026-11-10. Ransomware use: Unknown.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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