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CVE-2023-31196

21
FAUCET Score

CVE-2023-31196 is a critical authentication bypass vulnerability affecting specific versions of Inaba Wi-Fi AP UNITs, allowing unauthenticated remote attackers to access sensitive information. With a CVSS score of 7.5 (High), this vulnerability requires no user interaction or privileges, making it easily exploitable over the network. While there is no known active exploitation, public exploit code, or significant community discussion, the absence of authentication for a critical function poses a significant risk for affected organizations.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.05_b04CPE matchmatch criteria
cpe:2.3:o:inaba:ac-pd-wapu_firmware:*:*:*:*:*:*:*:*
<= 1.05_b04CPE matchmatch criteria
cpe:2.3:o:inaba:ac-pd-wapum_firmware:*:*:*:*:*:*:*:*
<= 1.05_b04pCPE matchmatch criteria
cpe:2.3:o:inaba:ac-pd-wapu-p_firmware:*:*:*:*:*:*:*:*
<= 1.05_b04pCPE matchmatch criteria
cpe:2.3:o:inaba:ac-pd-wapum-p_firmware:*:*:*:*:*:*:*:*
<= 1.00_b07CPE matchmatch criteria
cpe:2.3:o:inaba:ac-wapu-300_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.84%
Probability of exploitation in next 30 days
EPSS Percentile
54.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0084 is in the 29th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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/jp/JVN28412757
MitigationThird Party Advisory
inaba.co.jp / abaniact/news/Wi-Fi_AP_UNIT%E3%81%AB%E3%81%8A%E3%81%91%E3%82%8B%E8%A4%87%E6%95%B0%E3%81%AE%E8%84%86%E5%BC%B1%E6%80%A7%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6.pdf
Vendor Advisory