Is CVE-2019-15705 being actively exploited?

CVE-2019-15705 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2019-15705?

CVE-2019-15705 has a CVSS 3.1 base score of 7.5 (HIGH).

CVE-2019-15705

HIGH · CVSS 7.5EPSS 1.8%EU EUVD

An Improper Input Validation vulnerability in the SSL VPN portal of FortiOS versions 6.2.1 and below, and 6.0.6 and below may allow an unauthenticated remote attacker to crash the SSL VPN service by sending a crafted POST request.

Key facts

CVSS score: 7.5 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-20
EPSS score: 1.8% (78th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2019-6642)
Published: November 27, 2019
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2019-6642 in the EU Vulnerability Database. Last updated in EUVD on October 25, 2024.

View on the EU Vulnerability Database

Affected products

fortinet / fortios

Certified products that may be affected

4 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

FortiOS 5.6 - Fortinet, Inc. - FIPS 140 3639 - historical
FortiOS 5.2 - Fortinet, Inc. - FIPS 140 2765 - historical
FortiOS™ - Fortinet, Inc. - FIPS 140 1754 - historical
FortiOS - Fortinet, Inc. - FIPS 140 1431 - historical

References

https://fortiguard.com/advisory/FG-IR-19-236(Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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