CVE-2022-1805

When connecting to Amazon Workspaces, the SHA256 presented by AWS connection provisioner is not fully verified by Zero Clients. The issue could be exploited by an adversary that places a MITM (Man in the Middle) between a zero client and AWS session provisioner in the network. This issue is only applicable when connecting to an Amazon Workspace from a PCoIP Zero Client.

Published: 2022-07-28 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2022-1805 is rated Moderate Risk (53.3/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.39%). Mandatory action: Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2022-1805

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-08-03 0.31% 0.39% +0.08%
2 2025-07-30 0.16% 0.31% +0.15%
3 2023-08-04 0.16%

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-1805

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.1 3.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
2.2 5.9 [email protected]

Weakness enumeration for CVE-2022-1805

Affected software / configurations for CVE-2022-1805

Vendor Product Version Raw CPE
teradici tera2_pcoip_zero_client_firmware < 22.01.5 cpe:2.3:o:teradici:tera2_pcoip_zero_client_firmware:*:*:*:*:*:*:*:*
teradici tera2_pcoip_zero_client_firmware 22.04 cpe:2.3:o:teradici:tera2_pcoip_zero_client_firmware:22.04:*:*:*:*:*:*:*

References for CVE-2022-1805

cvelogic Threat Intelligence