How severe is CVE-2022-4636?

CVE-2022-4636 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2022-4636 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-4636?

CVE-2022-4636 primarily affects Blackbox Acr1000a-r-r2 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-4636?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-4636 published?

CVE-2022-4636 was published on 2023-01-10 and last updated on 2026-06-17.

CVE-2022-4636

CVE-2022-4636 is a high-severity vulnerability in Blackbox Acr1000a-r-r2 Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Blackbox Acr1000a-r-r2 Firmware
Published: 2023-01-10
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2022-4636?: CVE-2022-4636 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2022-4636 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-4636?: CVE-2022-4636 primarily affects Blackbox Acr1000a-r-r2 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-4636?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-4636 published?: CVE-2022-4636 was published on 2023-01-10 and last updated on 2026-06-17.

References

https://www.cisa.gov/uscert/ics/advisories/icsa-23-010-01

Affected products (5)

cpe:2.3:o:blackbox:acr1000a-r-r2_firmware:3.4.31307:*:*:*:*:*:*:*
cpe:2.3:o:blackbox:acr1000a-t-r2_firmware:3.4.31307:*:*:*:*:*:*:*
cpe:2.3:o:blackbox:acr1002a-r_firmware:3.4.31307:*:*:*:*:*:*:*
cpe:2.3:o:blackbox:acr1002a-t_firmware:3.4.31307:*:*:*:*:*:*:*
cpe:2.3:o:blackbox:acr1020a-t_firmware:3.4.31307:*:*:*:*:*:*:*

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