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Vulnerabilities

Threat intelligence · CVE-2021-45388

Vulnerability in NETGEAR Routers A vulnerability has been identified in the multiple NETGEAR routers which could be exploited potentially by the malicious user to comp…

Published Jan 21, 2022 · the affected product

Last checked Nov 4, 2026. A connected source was read within the last 7 days.

Open the advisory

Exploitation likelihood is not on this record for CVE-2021-45388. A missing EPSS score is not a low risk. Compare the affected product with the linked advisory before you change production.

Gaps on this record

  • No plain product name is stored. The page cannot tell you which product to check.
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
  • EPSS is missing. A missing score is not a low risk.
Severity
Unknown—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
Not in the current FIRST EPSS dataset
Remediation
Not established
Affected products
See sources for product scope

Vulnerability in NETGEAR Routers A vulnerability has been identified in the multiple NETGEAR routers which could be exploited potentially by the malicious user to compromise the affected systems. The identified Common Vulnerability and Exposure number is CVE-2021-45388. How it can be Exploited The pre-authentication buffer overflow security vulnerability exists in NETGEAR DSL Modem Routers and NETGEAR Routers because

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2021-45388

  • No stored fix

    No vendor fix text is stored. Use the linked advisory before you change production.

  • Version check

    No version range is stored, so an installed version cannot be checked on this page.

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

Exploitation likelihood is not on this record for CVE-2021-45388. A missing EPSS score is not a low risk. Compare the affected product with the linked advisory before you change production.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS is absent from the current FIRST dataset. There is no CISA KEV listing. 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.

  1. Jan 21, 2022 · AlienVault OTX

    Detected

    Vulnerability in NETGEAR Routers A vulnerability has been identified in the multiple NETGEAR routers which could be exploited potentially by the malicious user to compromise the affected systems. The identified Common Vulnerability and Exposure number is CVE-2021-45388. How it can be Exploited The pre-authentication buffer overflow security vulnerability exists in NETGEAR DSL Modem Routers and NET

Sources

References

Freshness

Last verified in this catalog Nov 4, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgNov 4, 2026
  • AlienVault OTXNov 2, 2026