CVE-2022-36456
CVE-2022-36456 is a high-severity vulnerability in Totolink A720r Firmware with a CVSS 3.x base score of 7.8. 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-78.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- EPSS exploit prediction: 1% (63rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-78
- Affected product: Totolink A720r Firmware
- Published:
- Last modified:
Description
TOTOLink A720R V4.1.5cu.532_B20210610 was discovered to contain a command injection vulnerability via the username parameter in /cstecgi.cgi.
Frequently asked questions
- What is CVE-2022-36456?
- TOTOLink A720R V4.1.5cu.532_B20210610 was discovered to contain a command injection vulnerability via the username parameter in /cstecgi.cgi.
- How severe is CVE-2022-36456?
- CVE-2022-36456 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2022-36456 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2022-36456?
- CVE-2022-36456 affects Totolink A720r Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2022-36456?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2022-36456 published?
- CVE-2022-36456 was published on 2022-08-25 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:totolink:a720r_firmware:4.1.5cu.532_b20210610:*:*:*:*:*:*:*
More vulnerabilities in Totolink A720r Firmware
- CVE-2023-23064 — Critical (CVSS 9.8): TOTOLINK A720R V4.1.5cu.532_ B20210610 is vulnerable to Incorrect Access Control.
- CVE-2021-45742 — Critical (CVSS 9.8): TOTOLINK A720R v4.1.5cu.470_B20200911 was discovered to contain a command injection vulnerability in the "Main"…
- CVE-2021-45740 — Critical (CVSS 9.8): TOTOLINK A720R v4.1.5cu.470_B20200911 was discovered to contain a stack overflow in the setWiFiWpsStart function. This…
- CVE-2021-44247 — Critical (CVSS 9.8): Totolink devices A3100R v4.1.2cu.5050_B20200504, A830R v5.9c.4729_B20191112, and A720R v4.1.5cu.470_B20200911 were…
- CVE-2021-35327 — Critical (CVSS 9.8): A vulnerability in TOTOLINK A720R A720R_Firmware v4.1.5cu.470_B20200911 allows attackers to start the Telnet service,…
- CVE-2021-35324 — Critical (CVSS 9.8): A vulnerability in the Form_Login function of TOTOLINK A720R A720R_Firmware V4.1.5cu.470_B20200911 allows attackers to…
All CVEs affecting Totolink A720r Firmware →
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