CVE-2019-18850

Name: CVE-2019-18850
Creator: NVD / NIST
Published: 2019-12-04T13:15:10.973+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.18%

Last modified Jun 17, 2026

CVE-2019-18850 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. TrevorC2 v1.1/v1.2 fails to prevent fingerprinting primarily via a discrepancy between response headers when responding to different HTTP methods, also via predictible responses when accessing and interacting with the "SITE_PATH_QUERY".. EPSS estimates a 1.18% chance of exploitation in the next 30 days.

Description

TrevorC2 v1.1/v1.2 fails to prevent fingerprinting primarily via a discrepancy between response headers when responding to different HTTP methods, also via predictible responses when accessing and interacting with the "SITE_PATH_QUERY".

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.18%

63.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Trustedsec	Trevorc2	1.1
Trustedsec	Trevorc2	1.2

References

https://github.com/trustedsec/trevorc2/blob/master/CHANGELOG.txtThird Party Advisory
https://github.com/trustedsec/trevorc2/issues/18Issue Tracking, Third Party Advisory
https://github.com/trustedsec/trevorc2/blob/master/CHANGELOG.txtThird Party Advisory
https://github.com/trustedsec/trevorc2/issues/18Issue Tracking, Third Party Advisory

Timeline

Published: Dec 4, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-18850?

How severe is CVE-2019-18850?

CVE-2019-18850 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.18% probability of exploitation in the next 30 days.

How do I fix CVE-2019-18850?

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-2019-18850?

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

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Source: NVD / NIST