CVE-2018-15508

HIGHNVD 7.57.5—

7.5

Five9 Agent Desktop Plus 10.0.70 has Incorrect Access Control allowing a remote attackers to cause a denial of service via opening a connection on port 8083 to a device running the Five9 SoftPhone(issue 1 of 2).

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 71.6%
KEV: Not listed

Published

March 21, 2019

Last Modified

November 21, 2024

References (2)

cve@mitrehttps://0tkombo.wixsite.com/0tkombo/blog/five9-dos-websocket-access
af854a3a-2127-422b-91ae-364da2661108https://0tkombo.wixsite.com/0tkombo/blog/five9-dos-websocket-access

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-732Incorrect Permission Assignment for Critical Resource

Data Freshness Timeline

(refreshed 10× in last 7d / 16× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-27 21:43 UTCEG score recompute
2026-05-27 21:43 UTCGHSA enrichment
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch

Frequently asked(5)

What is CVE-2018-15508?

CVE-2018-15508 is a high vulnerability published on March 21, 2019. Five9 Agent Desktop Plus 10.0.70 has Incorrect Access Control allowing a remote attackers to cause a denial of service via opening a connection on port 8083 to a device running the Five9 SoftPhone(issue 1 of 2).

When was CVE-2018-15508 disclosed?

CVE-2018-15508 was first published in the National Vulnerability Database on March 21, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2018-15508 actively exploited?

CVE-2018-15508 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 71.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-15508?

CVE-2018-15508 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2018-15508?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-15508, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2018-15508

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2018-15508?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)