CVE-2021-43661
CVE-2021-43661 is a medium-severity vulnerability in Totolink Ex300 V2 Firmware with a CVSS 3.x base score of 6.1. 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 6.1)
- CVSS v2: 4.3
- EPSS exploit prediction: 1% (46th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Totolink Ex300 V2 Firmware
- Published:
- Last modified:
Description
totolink EX300_v2 V4.0.3c.140_B20210429 was discovered to contain a reflected cross-site scripting (XSS) vulnerability via the component /home.asp.
Frequently asked questions
- What is CVE-2021-43661?
- totolink EX300_v2 V4.0.3c.140_B20210429 was discovered to contain a reflected cross-site scripting (XSS) vulnerability via the component /home.asp.
- How severe is CVE-2021-43661?
- CVE-2021-43661 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2021-43661 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-43661?
- CVE-2021-43661 affects Totolink Ex300 V2 Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-43661?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-43661 published?
- CVE-2021-43661 was published on 2022-03-31 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:totolink:ex300_v2_firmware:4.0.3c.140_b20210429:*:*:*:*:*:*:*
More vulnerabilities in Totolink Ex300 V2 Firmware
- CVE-2022-32449 — Critical (CVSS 9.8): TOTOLINK EX300_V2 V4.0.3c.7484 was discovered to contain a command injection vulnerability via the langType parameter…
- CVE-2022-25008 — High (CVSS 8.8): totolink EX300_v2 V4.0.3c.140_B20210429 and EX1200T V4.1.2cu.5230_B20210706 does not contain an authentication…
- CVE-2021-43664 — High (CVSS 8.1): totolink EX300_v2 V4.0.3c.140_B20210429 was discovered to contain a command injection vulnerability via the component…
- CVE-2021-43663 — High (CVSS 7.5): totolink EX300_v2 V4.0.3c.140_B20210429 was discovered to contain a command injection vulnerability via the component…
- CVE-2021-43662 — Medium (CVSS 6.5): totolink EX300_v2, ver V4.0.3c.140_B20210429 and A720R ,ver V4.1.5cu.470_B20200911 have an issue which causes…
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