CVE-2021-45905
CVE-2021-45905 is a medium-severity vulnerability in Openwrt with a CVSS 3.x base score of 5.4. 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 5.4)
- CVSS v2: 3.5
- EPSS exploit prediction: 1% (40th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Openwrt
- Published:
- Last modified:
Description
OpenWrt 21.02.1 allows XSS via the Traffic Rules Name screen.
Frequently asked questions
- What is CVE-2021-45905?
- OpenWrt 21.02.1 allows XSS via the Traffic Rules Name screen.
- How severe is CVE-2021-45905?
- CVE-2021-45905 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2021-45905 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-45905?
- CVE-2021-45905 affects Openwrt. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-45905?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-45905 published?
- CVE-2021-45905 was published on 2021-12-27 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:openwrt:openwrt:21.02.1:*:*:*:*:*:*:*
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