Multiple vulnerabilities in NEC Aterm series

1) Stored cross-site scripting

EUVDB-ID: #VU104061

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-0354

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote user can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Aterm WG2600HS: before 1.7.2

Aterm WG2600HP4: before 1.4.2

Aterm WG2600HM4: before 1.4.2

Aterm WG2600HS2: before 1.3.2

Aterm WX3000HP: before 2.4.2

Aterm WX4200D5: before 1.2.4

CPE2.3

• cpe:2.3:h:nec_corporation:aterm_wg2600hs:*:*:*:*:*:*:*:*
• cpe:2.3:h:nec_corporation:aterm_wg2600hp4:*:*:*:*:*:*:*:*
• cpe:2.3:h:nec_corporation:aterm_wg2600hm4:*:*:*:*:*:*:*:*
• cpe:2.3:h:nec_corporation:aterm_wg2600hs2:*:*:*:*:*:*:*:*
• cpe:2.3:h:nec_corporation:aterm_wx3000hp:*:*:*:*:*:*:*:*
• cpe:2.3:h:nec_corporation:aterm_wx4200d5:*:*:*:*:*:*:*:*

External links

https://jpn.nec.com/security-info/secinfo/nv25-003_en.html
https://jvn.jp/en/jp/JVN65447879/index.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Missing Authentication for Critical Function

EUVDB-ID: #VU104062

Risk: High

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2025-0355

CWE-ID: CWE-306 - Missing Authentication for Critical Function

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to missing authentication for critical function in dloader.php. A remote attacker can obtain the Wi-Fi passwords.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Aterm WG2600HS: before 1.7.2

Aterm WF1200CR: before 1.6.0

Aterm WG1200CR: before 1.5.0

Aterm GB1200PE: before 1.3.0

Aterm WG2600HP4: before 1.4.2

Aterm WG2600HM4: before 1.4.2

Aterm WG2600HS2: before 1.3.2

Aterm WX3000HP: before 2.4.2

Aterm WX4200D5: before 1.2.4

CPE2.3

• cpe:2.3:h:nec_corporation:aterm_wg2600hs:*:*:*:*:*:*:*:*
• cpe:2.3:h:nec_corporation:aterm_wf1200cr:*:*:*:*:*:*:*:*
• cpe:2.3:h:nec_corporation:aterm_wg1200cr:*:*:*:*:*:*:*:*
• cpe:2.3:h:nec_corporation:aterm_gb1200pe:*:*:*:*:*:*:*:*
• cpe:2.3:h:nec_corporation:aterm_wg2600hp4:*:*:*:*:*:*:*:*
• cpe:2.3:h:nec_corporation:aterm_wg2600hm4:*:*:*:*:*:*:*:*
• cpe:2.3:h:nec_corporation:aterm_wg2600hs2:*:*:*:*:*:*:*:*
• cpe:2.3:h:nec_corporation:aterm_wx3000hp:*:*:*:*:*:*:*:*
• cpe:2.3:h:nec_corporation:aterm_wx4200d5:*:*:*:*:*:*:*:*

External links

https://jpn.nec.com/security-info/secinfo/nv25-003_en.html
https://jvn.jp/en/jp/JVN65447879/index.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) OS Command Injection

EUVDB-ID: #VU104064

Risk: Low

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-0356

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a remote user to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation. A remote administrator can pass specially crafted data to the application and execute arbitrary OS commands on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Aterm WX1500HP: before 1.4.2

Aterm WX3600HP: before 1.5.3

CPE2.3

• cpe:2.3:h:nec_corporation:aterm_wx1500hp:*:*:*:*:*:*:*:*
• cpe:2.3:h:nec_corporation:aterm_wx3600hp:*:*:*:*:*:*:*:*

External links

https://jpn.nec.com/security-info/secinfo/nv25-003_en.html
https://jvn.jp/en/jp/JVN65447879/index.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.