CVE-2021-40041
CVE-2021-40041 is a medium-severity vulnerability in Huawei Ws318n-21 Firmware with a CVSS 3.x base score of 4.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 3.x base score 4.2)
- CVSS v2: 1.9
- EPSS exploit prediction: 0% (6th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Huawei Ws318n-21 Firmware
- Published:
- Last modified:
Description
There is a Cross-Site Scripting(XSS) vulnerability in HUAWEI WS318n product when processing network settings. Due to insufficient validation of user input, a local authenticated attacker could exploit this vulnerability by injecting special characters. Successful exploit could cause certain information disclosure. Affected product versions include: WS318n-21 10.0.2.2, 10.0.2.5 and 10.0.2.6.
Frequently asked questions
- What is CVE-2021-40041?
- There is a Cross-Site Scripting(XSS) vulnerability in HUAWEI WS318n product when processing network settings. Due to insufficient validation of user input, a local authenticated attacker could exploit this vulnerability by injecting special characters. Successful exploit could cause certain information disclosure. Affected product versions include: WS318n-21 10.0.2.2, 10.0.2.5 and 10.0.2.6.
- How severe is CVE-2021-40041?
- CVE-2021-40041 has a CVSS 3.x base score of 4.2, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2021-40041 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-40041?
- CVE-2021-40041 primarily affects Huawei Ws318n-21 Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2021-40041?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-40041 published?
- CVE-2021-40041 was published on 2022-01-10 and last updated on 2026-06-17.
References
Affected products (3)
- cpe:2.3:o:huawei:ws318n-21_firmware:10.0.2.2:*:*:*:*:*:*:*
- cpe:2.3:o:huawei:ws318n-21_firmware:10.0.2.5:*:*:*:*:*:*:*
- cpe:2.3:o:huawei:ws318n-21_firmware:10.0.2.6:*:*:*:*:*:*:*
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