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CVE-2023-20020

27
FAUCET Score

CVE-2023-20020 is a denial-of-service vulnerability in the Device Management Servlet of Cisco BroadWorks Application Delivery Platform and Xtended Services Platform. It stems from improper input validation, allowing an unauthenticated, remote attacker to send crafted HTTP requests that cause the device to drop all subsequent requests. The vulnerability has a high CVSS score of 8.6, indicating a network-based attack with low complexity and high impact on availability. Currently, there is no public exploit code, active exploitation, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 22.0, < 2022.11_1.273CPE matchmatch criteria
cpe:2.3:a:cisco:broadworks_application_delivery_platform_device_management:*:*:*:*:*:*:*:*
>= 22.0, < 23.0.1075.ap384245CPE matchmatch criteria
cpe:2.3:a:cisco:broadworks_xtended_services_platform:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.6HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.86%
Probability of exploitation in next 30 days
EPSS Percentile
54.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0086 is in the 30th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 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-dos-HpkeYzp
Vendor Advisory