Vulnerability

CVE-2023-50176

Medium· 4.2CVSS4.2EPSS0%

.rules3/5

A session fixation vulnerability in Fortinet FortiOS 7.4.0 through 7.4.3, FortiOS 7.2.0 through 7.2.7, FortiOS 7.0.0 through 7.0.13 allows attacker to execute unauthorized code or commands via phishing SAML authentication link.

Threat signal

50/100

Elevated

Severity

medium

CVSS

4.2

EPSS

Active

CVSS

v3.1via NVDOpen in FIRST calculator →

4.2/ 10MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

Attack VectorNetworkExploitable remotely over the internet — no local access needed.
Attack ComplexityHighRequires conditions outside attacker's control (race, brute-force, configuration
Privileges RequiredNoneUnauthenticated — no credentials needed.
User InteractionRequiredRequires user action (click, file open, etc).
ScopeUnchangedImpact contained to the vulnerable component.
Confidentiality ImpactLowSome data disclosure; attacker doesn't fully control what.
Integrity ImpactLowSome data modification; attacker doesn't fully control extent.
Availability ImpactNoneNo availability impact.

EPSS

Exploit prediction · 30-day horizonFIRST.org →

0.43%

probability of exploitation in next 30 days

p36

higher than 36% of all CVEs

8-day trend↑ 0pp

Low exploitation likelihood — defer if no other signals fire.

Vendor VEX

No VEX statements published for CVE-2023-50176. Vendors publish VEX (Vulnerability Exploitability eXchange) to assert per-product whether a CVE is actually exploitable in their distribution.

SSVCDefer

No exploitation, limited impact or prevalence

exploitation: none
automatable: no
impact: partial
mission: support

Lifecycle

2024-11-12Published
2026-08-24Last modified1 source

References

https://fortiguard.fortinet.com/psirt/FG-IR-23-475