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CVE-2019-5591

MEDIUMCVSS 6.5/10Actively ExploitedEPSS 18.57%

Last modified

CVE-2019-5591 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A Default Configuration vulnerability in FortiOS may allow an unauthenticated attacker on the same subnet to intercept sensitive information by impersonating the LDAP server.. CISA has confirmed active exploitation in the wild. EPSS estimates a 18.57% chance of exploitation in the next 30 days.

Description

A Default Configuration vulnerability in FortiOS may allow an unauthenticated attacker on the same subnet to intercept sensitive information by impersonating the LDAP server.

Metrics

CVSS 3.1
6.5/10

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability
18.57%

96.9th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .

Weakness Enumeration

Affected Software

VendorProductVersions
FortinetFortios<= 6.2.0

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2019-5591?
A Default Configuration vulnerability in FortiOS may allow an unauthenticated attacker on the same subnet to intercept sensitive information by impersonating the LDAP server.
How severe is CVE-2019-5591?
CVE-2019-5591 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 18.57% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.
How do I fix CVE-2019-5591?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-5591?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST