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CVE-2021-36705

In ProLink PRC2402M V1.0.18 and older, the set_TR069 function in the adm.cgi binary, accessible...

9.8 Critical

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

2.62%Up 2.2 points since Aug 7, 2021
90%50%10%1%

What each source reports

NVD Score used 9.8

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.

Record
CVE-2021-36705
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-78
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2021-36705
Updated
2026-11-02
EUVDEUVD-2021-23300 No score

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.

Record
EUVD-2021-23300
Updated
2026-11-03
GitHub AdvisoriesGHSA-6f6j-c55c-5gxx 9.8

In ProLink PRC2402M V1.0.18 and older, the set_TR069 function in the adm.cgi binary, accessible...

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.

Record
GHSA-6f6j-c55c-5gxx
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-77
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-36705 is a critical vulnerability (CVSS 9.8) in Prolink Prc2402m Firmware, published August 6, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.62%, the 85th percentile. No source names a fixed version.

References

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