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CVE-2023-20238

39
FAUCET Score

CVE-2023-20238 is a critical authentication bypass vulnerability affecting Cisco BroadWorks Application Delivery Platform and Cisco BroadWorks Xtended Services Platform. This flaw allows an unauthenticated, remote attacker to forge credentials due to improper SSO token validation. With a CVSS score of 9.8 (CRITICAL), a successful exploit could lead to toll fraud, execution of commands at the privilege level of the forged account, including administrator access to view confidential information, and modify customer or user settings. While there is no evidence of active exploitation (KEV: No), the vulnerability has garnered significant community attention with 4 mentions and 2 media articles, indicating high awareness. There are currently no public exploit tools like Metasploit, Nuclei, or ExploitDB entries.

Impacted Technologies

VendorProductVersion(s)CPE
ri.2023.06CPE matchmatch criteria
cpe:2.3:a:cisco:broadworks_application_delivery_platform:ri.2023.06:*:*:*:*:*:*:*
ri.2023.07CPE matchmatch criteria
cpe:2.3:a:cisco:broadworks_application_delivery_platform:ri.2023.07:*:*:*:*:*:*:*
< 23.0.1075.ap384245CPE matchmatch criteria
cpe:2.3:a:cisco:broadworks_xtended_services_platform:*:*:*:*:-:*:*:*
2023.06CPE matchmatch criteria
cpe:2.3:a:cisco:broadworks_xtended_services_platform:2023.06:*:*:*:release_independent:*:*:*
2023.07CPE matchmatch criteria
cpe:2.3:a:cisco:broadworks_xtended_services_platform:2023.07:*:*:*:release_independent:*:*:*

CVSS Data

CVSS version used by this source: 3.1

10.0CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
15.32%
Probability of exploitation in next 30 days
EPSS Percentile
96.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.1532 is in the 92nd percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

sec.cloudapps.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-bw-auth-bypass-kCggMWhX
Vendor Advisory