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CVE-2019-1720

19
FAUCET Score

CVE-2019-1720 is a denial-of-service vulnerability in the XML API of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) versions prior to X12.5.1. An authenticated, remote attacker can exploit improper XML input handling by sending a crafted XML payload, causing 100% CPU utilization and requiring a manual reboot. With a CVSS score of 4.9 (Medium), this vulnerability has a low attack complexity but requires high privileges. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< x12.5.1CPE matchmatch criteria
cpe:2.3:a:cisco:telepresence_video_communication_server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.8MEDIUM

CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.3
Impact Score
4.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.70%
Probability of exploitation in next 30 days
EPSS Percentile
74.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0170 is in the 81st percentile among its peer group of 3,565 CVEs.

Social Chatter

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

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417-ces-tvcs-dos
Vendor Advisory
securityfocus.com / bid/108002
Third Party Advisory