Devolutions Server before 2021.1.18, and LTS before 2020.3.20, allows attackers to intercept private keys via a man-in-the-middle attack ag…

published 2021-07-12 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-22998

cvss: 2.6; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 51%
public exploits: 0; none known

Devolutions Server before 2021.1.18, and LTS before 2020.3.20, allows attackers to intercept private keys via a man-in-the-middle attack against the connections/partial endpoint (which accepts cleartext).

Patch / fix

fixed in 1

devolutions devolutions_server 2020.3.20, 2021.1.18

Exploit prediction

0.65% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	2.6	CVSS:3.1/AC:H/AV:A/A:N/C:L/I:N/PR:N/S:U/UI:R
CNA	3.1	2.6	CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
NVD	3.1	3.7	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:P/I:N/A:N

Classification

Weakness

CWE-319 Cleartext Transmission of Sensitive Information
CWE-522 Insufficiently Protected Credentials

References

devolutions.net /security/advisories/DEVO-2021-0005
vendor-advisory

Sources

CVE List CVE-2021-36382
NVD CVE-2021-36382

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary