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CVE-2018-15508

24
FAUCET Score

CVE-2018-15508 describes an Incorrect Access Control vulnerability in Five9 Agent Desktop Plus 10.0.70, specifically impacting the Five9 SoftPhone component. This flaw allows remote attackers to trigger a denial of service by opening a connection on port 8083. With a CVSS score of 7.5 (High), the vulnerability is network-exploitable with low complexity, requiring no user interaction or privileges, and its primary impact is high availability loss. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
10.0.70CPE matchmatch criteria
cpe:2.3:a:five9:agent_desktop_plus:10.0.70:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.76%
Probability of exploitation in next 30 days
EPSS Percentile
75.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0176 is in the 58th percentile among its peer group of 51,485 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

Remediation records are not available for this CVE.

References

0tkombo.wixsite.com / 0tkombo/blog/five9-dos-websocket-access
ExploitThird Party Advisory