CVE-2026-32326

Device information disclosure via unauthenticated web APIs

Published Mar 25, 2026 · Updated Mar 25, 2026

Missing authentication in web APIs in affected Sharp routers allows attackers to retrieve device information without a login. The APIs expose device data that supplies part of the factory administrative password, linking an unauthenticated read directly to credential derivation. Access requires an adjacent-network position, and administrative takeover is limited to devices whose initial password remains unchanged.

CVSS severity6.9
Medium
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in web APIs in affected Sharp routers allows attackers to retrieve device information without a login. The APIs expose device data that supplies part of the factory administrative password, linking an unauthenticated read directly to credential derivation. Access requires an adjacent-network position, and administrative takeover is limited to devices whose initial password remains unchanged.

The record

CVE
CVE-2026-32326
Published
Mar 25, 2026
Updated
Mar 25, 2026
Vendor
Sharp Corporation
Product
Wi-Fi STATION SH-54C
Classifications
CWE-306, T1552
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=S6.64.00 and earlier

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Sharp Corporation · Wi-Fi STATION SH-54Cversion=S6.64.00 and earlier
Sharp Corporation · Wi-Fi STATION SH-52Bversion=S3.87.15 and earlierr
Sharp Corporation · Wi-Fi STATION SH-52Aversion=38JP_2_03J and earlier
Sharp Corporation · Pocket WiFi 5G A503SHversion=S7.41.00 and earlier
Sharp Corporation · Speed Wi-Fi 5G X01version=3RJP_2_03I and earlier
Sharp Corporation · home 5G HR01version=38JP_0_490 and earlier
Sharp Corporation · 5G Mobile Router SH-U01version=S4.48.00 and earlier
Sharp Corporation · home 5G HR02version=S5.A1.00 and earlier

Published CVSS scores

6.9JPCERT/CCCVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
5.7JPCERT/CCCVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1552Unsecured Credentials

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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