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CVE-2021-36167

MEDIUMCVSS 5.3/10EPSS 0.57%

Last modified

CVE-2021-36167 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. An improper authorization vulnerabiltiy [CWE-285] in FortiClient Windows versions 7.0.0 and 6.4.6 and below and 6.2.8 and below may allow an unauthenticated attacker to bypass the webfilter control via modifying the session-id paramater.. EPSS estimates a 0.57% chance of exploitation in the next 30 days.

Description

An improper authorization vulnerabiltiy [CWE-285] in FortiClient Windows versions 7.0.0 and 6.4.6 and below and 6.2.8 and below may allow an unauthenticated attacker to bypass the webfilter control via modifying the session-id paramater.

Metrics

CVSS 3.1
5.3/10

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

EPSS Probability
0.57%

42.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
FortinetForticlient>= 6.4.0, <= 6.4.6
FortinetForticlient6.2.7
FortinetForticlient7.0.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-36167?
An improper authorization vulnerabiltiy [CWE-285] in FortiClient Windows versions 7.0.0 and 6.4.6 and below and 6.2.8 and below may allow an unauthenticated attacker to bypass the webfilter control via modifying the session-id paramater.
How severe is CVE-2021-36167?
CVE-2021-36167 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.57% probability of exploitation in the next 30 days.
How do I fix CVE-2021-36167?
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-2021-36167?

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

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Source: NVD / NIST