Vulnerability · CVE-2021-35402
PROLiNK PRC2402M 20190909 before 2021-06-13 allows live_api.cgi?page=satellite_list OS command injection via shell metacharacters in the ip parameter (for satellite_status).
Published Mar 25, 2025 · catalog updated Jun 17, 2026 · Prolink PRC2402M
Patch now
CVE-2021-35402 is in the CISA known-exploited catalog. Confirm Prolink PRC2402M against the vendor advisory and apply that fix. The CVSS score does not change the priority.
Gaps on this record
- No version range is stored. A customer cannot check an installed version against this record.
- Severity
- Critical10.0
- Known exploitation
- CISA KEV and VulnCheck KEV
- EPSS
- 0.99%
- Remediation
- Remediation guidance
- Affected products
- vendor Prolink PRC2402M
A vulnerability is present in Prolink PRC2402M that could allow unauthenticated remote adversaries to inject commands due to improper checks on input supplied to 'live_api.cgi'.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor Prolink PRC2402Mversion unspecified
How to fix CVE-2021-35402
Recommended remediation
Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
CVE-2021-35402 is in the CISA known-exploited catalog. Confirm Prolink PRC2402M against the vendor advisory and apply that fix. The CVSS score does not change the priority.
Which versions are affected?
Affected version ranges are not on this record. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
What should an analyst verify?
CWE-78: OS Command Injection. EPSS 0.99%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Mar 25, 2025 · CISA KEV
Known exploited
Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Feb 20, 2026 · NIST NVD
Detected
PROLiNK PRC2402M 20190909 before 2021-06-13 allows live_api.cgi?page=satellite_list OS command injection via shell metacharacters in the ip parameter (for satellite_status).
Jun 17, 2026 · NIST NVD
Updated
PROLiNK PRC2402M 20190909 before 2021-06-13 allows live_api.cgi?page=satellite_list OS command injection via shell metacharacters in the ip parameter (for satellite_status).
Sources
- CVE.orgVulnerability recordCVE-2021-35402
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2021-35402
30-day exploitation probability 1.0%
first.org - NIST NVDVulnerability recordCVE-2021-35402
PROLiNK PRC2402M 20190909 before 2021-06-13 allows live_api.cgi?page=satellite_list OS command injection via shell metacharacters in the ip parameter (for satellite_status).
nvd.nist.gov - VulnCheck KEVConfirmed exploitationCVE-2021-35402
A vulnerability is present in Prolink PRC2402M that could allow unauthenticated remote adversaries to inject commands due to improper checks on input supplied to 'live_api.cgi'.
vulncheck.com
References
Freshness
Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.