CVE-2021-36705
CVE-2021-36705 is a critical-severity vulnerability in Prolink Prc2402m Firmware with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 3% (84th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-78
- Affected product: Prolink Prc2402m Firmware
- Published:
- Last modified:
Description
In ProLink PRC2402M V1.0.18 and older, the set_TR069 function in the adm.cgi binary, accessible with a page parameter value of TR069 contains a trivial command injection where the value of the TR069_local_port parameter is passed directly to system.
Frequently asked questions
- What is CVE-2021-36705?
- In ProLink PRC2402M V1.0.18 and older, the set_TR069 function in the adm.cgi binary, accessible with a page parameter value of TR069 contains a trivial command injection where the value of the TR069_local_port parameter is passed directly to system.
- How severe is CVE-2021-36705?
- CVE-2021-36705 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-36705 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-36705?
- CVE-2021-36705 affects Prolink Prc2402m Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-36705?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2021-36705 published?
- CVE-2021-36705 was published on 2021-08-06 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:prolink:prc2402m_firmware:*:*:*:*:*:*:*:*
More vulnerabilities in Prolink Prc2402m Firmware
- CVE-2021-36707 — Critical (CVSS 9.8): In ProLink PRC2402M V1.0.18 and older, the set_ledonoff function in the adm.cgi binary, accessible with a page…
- CVE-2021-36706 — Critical (CVSS 9.8): In ProLink PRC2402M V1.0.18 and older, the set_sys_cmd function in the adm.cgi binary, accessible with a page parameter…
- CVE-2021-36708 — High (CVSS 7.5): In ProLink PRC2402M V1.0.18 and older, the set_sys_init function in the login.cgi binary allows an attacker to reset…
All CVEs affecting Prolink Prc2402m Firmware →
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