CVE-2022-30792 | CODESYS: CmpChannelServer, CmpChannelServerEmbedded allow unauthenticated attackers to block all their available communication channels

In CmpChannelServer of CODESYS V3 in multiple versions an uncontrolled ressource consumption allows an unauthorized attacker to block new communication channel connections. Existing connections are not affected.

Published: 2022-07-11 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-30792 is rated Moderate Risk (50.7/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.39%). 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-2022-30792

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 2026-03-15 0.54% 0.39% -0.15%
2 2025-11-21 0.39% 0.54% +0.15%
3 2025-11-18 — 0.39% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-30792

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
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:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
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:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2022-30792

Affected software / configurations for CVE-2022-30792

Vendor Product Version Raw CPE
codesys control_for_beaglebone < 4.5.0.0 cpe:2.3:a:codesys:control_for_beaglebone:*:*:*:*:*:*:*:*
codesys control_for_empc-a\/imx6 < 4.5.0.0 cpe:2.3:a:codesys:control_for_empc-a\/imx6:*:*:*:*:*:*:*:*
codesys control_for_iot2000_sl < 4.6.0.0 cpe:2.3:a:codesys:control_for_iot2000_sl:*:*:*:*:*:*:*:*
codesys control_for_linux_sl < 4.5.0.0 cpe:2.3:a:codesys:control_for_linux_sl:*:*:*:*:*:*:*:*
codesys control_for_pfc100_sl < 4.5.0.0 cpe:2.3:a:codesys:control_for_pfc100_sl:*:*:*:*:*:*:*:*
codesys control_for_pfc200_sl < 4.5.0.0 cpe:2.3:a:codesys:control_for_pfc200_sl:*:*:*:*:*:*:*:*
codesys control_for_plcnext < 4.6.0.0 cpe:2.3:a:codesys:control_for_plcnext:*:*:*:*:*:*:*:*
codesys control_for_raspberry_pi_sl < 4.5.0.0 cpe:2.3:a:codesys:control_for_raspberry_pi_sl:*:*:*:*:*:*:*:*
codesys control_for_wago_touch_panels_600 < 4.5.0.0 cpe:2.3:a:codesys:control_for_wago_touch_panels_600:*:*:*:*:*:*:*:*
codesys control_rte_sl < 3.5.18.20 cpe:2.3:a:codesys:control_rte_sl:*:*:*:*:*:*:*:*
codesys control_rte_sl_\(for_beckhoff_cx\) < 3.5.18.20 cpe:2.3:a:codesys:control_rte_sl_\(for_beckhoff_cx\):*:*:*:*:*:*:*:*
codesys control_runtime_system_toolkit < 3.5.18.20 cpe:2.3:a:codesys:control_runtime_system_toolkit:*:*:*:*:*:*:*:*
codesys control_win < 3.5.18.20 cpe:2.3:a:codesys:control_win:*:*:*:*:*:*:*:*
codesys development_system < 3.5.18.20 cpe:2.3:a:codesys:development_system:*:*:*:*:*:*:*:*
codesys edge_gateway < 3.5.18.20 cpe:2.3:a:codesys:edge_gateway:*:*:*:*:*:windows:*:*
codesys edge_gateway < 4.5.0.0 cpe:2.3:a:codesys:edge_gateway:*:*:*:*:*:linux:*:*
codesys embedded_target_visu_toolkit < 3.5.18.20 cpe:2.3:a:codesys:embedded_target_visu_toolkit:*:*:*:*:*:*:*:*
codesys gateway < 3.5.18.20 cpe:2.3:a:codesys:gateway:*:*:*:*:*:*:*:*
codesys hmi < 3.5.18.20 cpe:2.3:a:codesys:hmi:*:*:*:*:*:*:*:*
codesys remote_target_visu_toolkit < 3.5.18.20 cpe:2.3:a:codesys:remote_target_visu_toolkit:*:*:*:*:*:*:*:*

References for CVE-2022-30792

cvelogic Threat Intelligence