CVE-2020-8815

Name: CVE-2020-8815
Creator: NVD / NIST
Published: 2020-02-12T15:15:14.803+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.19%

Last modified Jun 17, 2026

CVE-2020-8815 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Improper connection handling in the base connection handler in IKTeam BearFTP before v0.3.1 allows a remote attacker to achieve denial of service via a Slowloris approach by sending a large volume of small packets.. EPSS estimates a 2.19% chance of exploitation in the next 30 days.

Description

Improper connection handling in the base connection handler in IKTeam BearFTP before v0.3.1 allows a remote attacker to achieve denial of service via a Slowloris approach by sending a large volume of small packets.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

2.19%

80.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Iktm	Bearftp	< 0.3.1

References

https://github.com/kolya5544/BearFTPThird Party Advisory
https://github.com/kolya5544/BearFTP/blob/f5a8047587c1a96456d4f291c12b038b9ab0d0c5/BearFTP/Program.cs#L503-L525Exploit, Third Party Advisory
https://github.com/kolya5544/BearFTP/commit/17a6ead72d4a25cbfcef5e27613aa0a5f88a4b26Patch, Third Party Advisory
https://github.com/kolya5544/BearFTP/commit/66dc9d95e58bca133f265457d32007cdf38b66adPatch, Third Party Advisory
https://github.com/kolya5544/BearFTP/releases/tag/0.4.0Release Notes, Third Party Advisory
https://github.com/kolya5544/BearFTPThird Party Advisory
https://github.com/kolya5544/BearFTP/blob/f5a8047587c1a96456d4f291c12b038b9ab0d0c5/BearFTP/Program.cs#L503-L525Exploit, Third Party Advisory
https://github.com/kolya5544/BearFTP/commit/17a6ead72d4a25cbfcef5e27613aa0a5f88a4b26Patch, Third Party Advisory
https://github.com/kolya5544/BearFTP/commit/66dc9d95e58bca133f265457d32007cdf38b66adPatch, Third Party Advisory
https://github.com/kolya5544/BearFTP/releases/tag/0.4.0Release Notes, Third Party Advisory

Timeline

Published: Feb 12, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-8815?

How severe is CVE-2020-8815?

CVE-2020-8815 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.19% probability of exploitation in the next 30 days.

How do I fix CVE-2020-8815?

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-2020-8815?

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

Scan your code now

Source: NVD / NIST