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CVE-2022-39044

23
FAUCET Score

CVE-2022-39044 is a hidden functionality vulnerability in numerous Buffalo network devices, allowing a network-adjacent attacker with administrative privileges to execute arbitrary OS commands. The vulnerability affects a wide range of Buffalo routers and access points across various firmware versions. With a CVSS score of 6.8 (Medium), exploitation requires network adjacency and high privileges, but can lead to complete compromise of confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.87CPE matchmatch criteria
cpe:2.3:o:buffalo:wcr-300_firmware:*:*:*:*:*:*:*:*
<= 2.00CPE matchmatch criteria
cpe:2.3:o:buffalo:whr-hp-g300n_firmware:*:*:*:*:*:*:*:*
<= 1.87CPE matchmatch criteria
cpe:2.3:o:buffalo:whr-hp-gn_firmware:*:*:*:*:*:*:*:*
<= 1.88CPE matchmatch criteria
cpe:2.3:o:buffalo:wpl-05g300_firmware:*:*:*:*:*:*:*:*
<= 2.00CPE matchmatch criteria
cpe:2.3:o:buffalo:wzr-300hp_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.8MEDIUM

CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.32%
Probability of exploitation in next 30 days
EPSS Percentile
24.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0032 is in the 16th percentile among its peer group of 399 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

jvn.jp / en/vu/JVNVU92805279/index.html
Third Party Advisory
buffalo.jp / news/detail/20221003-01.html
PatchVendor Advisory