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01 Record

CVE-2022-43443

OS command injection vulnerability in Buffalo network devices allows an network-adjacent attacker to execute an arbitrary OS command if a specially crafted request is sent to the management page.

HighPUBLISHEDCNA: jpcert
CNA base score8.0 CVSS v3.xCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

02 Description

OS command injection vulnerability in Buffalo network devices allows an network-adjacent attacker to execute an arbitrary OS command if a specially crafted request is sent to the management page.

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.77% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 55.5% of scored records. A rank, not a probability.
NVD base score
8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2022-12-19 00:00Z3 YR AGO
Last updated
2025-04-17 14:54Z1 YR AGO
Reserved
2022-12-05
Assigning CNA
jpcert
Record state
PUBLISHED
Severity
High (CVSS 8.0)
CNA CVSS vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base
Data version
5.1
Document digest
f7ef4fa45db95d3030f96035242f18bdb2559966844447a8920b7f014e5d22ef

05 Affected products

VendorProductVersionsPlatforms
BUFFALO INC.WXR-11000XE12firmware Ver. 1.10 and earlier—
BUFFALO INC.WXR-5700AX7Sfirmware Ver. 1.27 and earlier—
BUFFALO INC.WXR-5700AX7Bfirmware Ver. 1.27 and earlier—
BUFFALO INC.WSR-3200AX4Sfirmware Ver. 1.26 and earlier—
BUFFALO INC.WSR-3200AX4Bfirmware Ver. 1.25—
BUFFALO INC.WSR-2533DHPfirmware Ver. 1.08 and earlier—
BUFFALO INC.WSR-2533DHP2firmware Ver. 1.22 and earlier—
BUFFALO INC.WSR-A2533DHP2firmware Ver. 1.22 and earlier—
BUFFALO INC.WSR-2533DHP3firmware Ver. 1.26 and earlier—
BUFFALO INC.WSR-A2533DHP3firmware Ver. 1.26 and earlier—
BUFFALO INC.WSR-2533DHPLfirmware Ver. 1.08 and earlier—
BUFFALO INC.WSR-2533DHPL2firmware Ver. 1.03 and earlier—
BUFFALO INC.WSR-2533DHPLSfirmware Ver. 1.07 and earlier—
BUFFALO INC.WSR-2533DHPLBfirmware Ver. 1.05—
BUFFALO INC.WSR-1166DHPfirmware Ver. 1.16 and earlier—
BUFFALO INC.WSR-1166DHP2firmware Ver. 1.17 and earlier—
BUFFALO INC.WCR-1166DSfirmware Ver. 1.34 and earlier—

06 References