CVE-2019-15705
An Improper Input Validation vulnerability in the SSL VPN portal of FortiOS versions 6.2.1 and...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2019-15705- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2019-15705- Updated
- 2026-11-02
EUVDEUVD-2019-6642 No score
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.
- Record
EUVD-2019-6642- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-mrc8-q5x7-fjr7
An Improper Input Validation vulnerability in the SSL VPN portal of FortiOS versions 6.2.1 and...
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.
- Record
GHSA-mrc8-q5x7-fjr7- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-20
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-15705 is a high vulnerability (CVSS 7.5) in Fortinet Fortios, published November 27, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.80%, the 78th percentile. No source names a fixed version.