No exploitation reportedFix available

CVE-2020-24566

Q: Is CVE-2020-24566 actively exploited?

Active exploitation of CVE-2020-24566 has not been confirmed. Its EPSS score was 1.8% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2020-24566?

CVE-2020-24566 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

No exploitation reported by the sources we read.

Published2020-09-09
Fixed in2020.3.4
WeaknessCWE-532

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

In Octopus Deploy 2020.3.x before 2020.3.4 and 2020.4.x before 2020.4.1, if an authenticated user creates a deployment or runbook process using Azure steps and sets the step's execution location to run on the server/worker, then (under certain circumstances) the account password is exposed in cleartext in the verbose task logs output.

Timeline

dates in UTC

2020-09-0916:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-24566?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-24566?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Octopus octopus deploy

Branch	Affected	Fixed in	Source
2020.3	≥ 2020.3, < 2020.3.4	2020.3.4	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Octopus octopus deploy to 2020.3.4

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.17.5read 2026-10-23
NVDCVSS 2.04.3read 2026-10-23
NVDweakness (CWE)CWE-532read 2026-10-23
FIRST EPSSEPSS score1.8 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published: 2020-09-09
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2020-24566?

Is CVE-2020-24566 actively exploited?

Active exploitation of CVE-2020-24566 has not been confirmed. Its EPSS score was 1.8% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-24566?

CVE-2020-24566 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

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