CVE-2020-36254

Name: CVE-2020-36254
Creator: NVD / NIST
Published: 2021-02-25T09:15:13.037+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 1.55%

Last modified Jun 17, 2026

CVE-2020-36254 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. scp.c in Dropbear before 2020.79 mishandles the filename of . or an empty filename, a related issue to CVE-2018-20685.. EPSS estimates a 1.55% chance of exploitation in the next 30 days.

Description

scp.c in Dropbear before 2020.79 mishandles the filename of . or an empty filename, a related issue to CVE-2018-20685.

Metrics

CVSS 3.1

8.1/10

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

EPSS Probability

1.55%

72.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Dropbear Ssh Project	Dropbear Ssh	< 2020.79

References

https://github.com/mkj/dropbear/commit/8f8a3dff705fad774a10864a2e3dbcfa9779ceffPatch, Third Party Advisory
https://github.com/mkj/dropbear/commit/8f8a3dff705fad774a10864a2e3dbcfa9779ceffPatch, Third Party Advisory

Timeline

Published: Feb 25, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-36254?

scp.c in Dropbear before 2020.79 mishandles the filename of . or an empty filename, a related issue to CVE-2018-20685.

How severe is CVE-2020-36254?

CVE-2020-36254 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 1.55% probability of exploitation in the next 30 days.

How do I fix CVE-2020-36254?

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-2020-36254?

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

Scan your code now

Source: NVD / NIST