CVE-2022-4636

Black Box KVM Firmware version 3.4.31307 on models ACR1000A-R-R2, ACR1000A-T-R2, ACR1002A-T, ACR1002A-R, and ACR1020A-T is vulnerable to path traversal, which may allow an attacker to steal user credentials and other sensitive information through local file inclusion.

Published: 2023-01-10 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-4636 is rated Moderate Risk (48.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.29%). 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-2022-4636

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 2026-03-06 0.39% 0.29% -0.09%
2 2026-01-12 0.56% 0.39% -0.17%
3 2026-01-11 — 0.56% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-4636

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:H/I:N/A:N 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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 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:H/I:N/A:N 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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]

Weakness enumeration for CVE-2022-4636

Affected software / configurations for CVE-2022-4636

Vendor Product Version Raw CPE
blackbox acr1000a-r-r2_firmware 3.4.31307 cpe:2.3:o:blackbox:acr1000a-r-r2_firmware:3.4.31307:*:*:*:*:*:*:*
blackbox acr1000a-t-r2_firmware 3.4.31307 cpe:2.3:o:blackbox:acr1000a-t-r2_firmware:3.4.31307:*:*:*:*:*:*:*
blackbox acr1002a-r_firmware 3.4.31307 cpe:2.3:o:blackbox:acr1002a-r_firmware:3.4.31307:*:*:*:*:*:*:*
blackbox acr1002a-t_firmware 3.4.31307 cpe:2.3:o:blackbox:acr1002a-t_firmware:3.4.31307:*:*:*:*:*:*:*
blackbox acr1020a-t_firmware 3.4.31307 cpe:2.3:o:blackbox:acr1020a-t_firmware:3.4.31307:*:*:*:*:*:*:*

References for CVE-2022-4636

URL Tags
https://www.cisa.gov/uscert/ics/advisories/icsa-23-010-01 Patch Third Party Advisory US Government Resource
cvelogic Threat Intelligence