VulnerabilityPublished 25 Mar 2026

CVE-2026-32326: Sharp home 5G HR01 · Missing Authentication

Affects Sharp home 5G HR01Source CVE Database V5

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Not known to be exploited · CVSS 5.7 Medium.

Data as of 29 Oct 2026, 19:04 UTC

CVSS 3.0 base score

5.7Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.3% chance of exploitation in 30 days – higher than 28% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector: Adjacent
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: None
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Adjacent: The vulnerable component is bound to the network stack, but the attack is limited at the protocol level to a logically adjacent topology. This can mean an attack must be launched from the same shared physical (e.g., Bluetooth or IEEE 802.11) or logical (e.g., local IP subnet) network, or from within a secure or otherwise limited administrative domain (e.g., MPLS, secure VPN to an administrative network zone).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 25 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
Sharp Corporationhome 5G HR01	Affected =38JP_0_490 and earlier	Fixed in–
Sharp Corporationhome 5G HR02	Affected =S5.A1.00 and earlier	Fixed in–
Sharp CorporationWi-Fi STATION SH-52A	Affected =38JP_2_03J and earlier	Fixed in–
Sharp CorporationWi-Fi STATION SH-52B	Affected =S3.87.15 and earlierr	Fixed in–
Sharp CorporationWi-Fi STATION SH-54C	Affected =S6.64.00 and earlier	Fixed in–
Sharp Corporation5G Mobile Router SH-U01	Affected =S4.48.00 and earlier	Fixed in–

AI-suggested

Immediately change the default administrative password on all affected Sharp home 5G HR01 routers to a strong, unique password to prevent takeover.
Restrict local network access to the router’s management interface by implementing network segmentation and firewall rules that limit access to trusted devices only.
Monitor network traffic for unusual activity or unauthorized access attempts to the router’s web APIs.
Regularly check for and apply firmware updates from Sharp Corporation once patches addressing this vulnerability are released.
Disable remote management features if not required to reduce exposure.
Educate users on the risks of default credentials and the importance of secure configuration of network devices.
Consider deploying network intrusion detection systems capable of identifying anomalous router management traffic.
For organizations, implement network access control (NAC) to ensure only authorized devices can connect to sensitive network segments.

Description

SHARP routers do not perform authentication for some web APIs. The device information may be retrieved without authentication. If the administrative password of the device is left as the initial one, the device may be taken over.

Impact

The vulnerability allows unauthorized local network attackers to access sensitive device information without authentication, potentially exposing configuration details that could facilitate further attacks. If the administrative password is not changed from its default, attackers can fully compromise the router, gaining administrative control. This can lead to unauthorized changes in network configuration, interception or redirection of network traffic, and the creation of persistent backdoors. The impact is primarily on confidentiality and device control, with no direct impact on data integrity or availability reported. Organizations relying on these routers for home or small office connectivity may face increased risk of network compromise, especially if default credentials are used. The lack of authentication on critical APIs also increases the attack surface and could be leveraged in multi-stage attacks. While exploitation requires local network access, compromised devices could be used as pivot points for lateral movement within organizational networks.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 25 Mar 2026, 08:15 UTC

Technical details

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