November 14, 2026

CVE Watchtower

CVE-2021-40491n/a n/a n/a

NVD

Vulnerability Summary

The ftp client in GNU Inetutils before 2.2 does not validate addresses returned by PASV/LSPV responses to make sure they match the server address. This is similar to CVE-2020-8284 for curl.
Severity Level
UNKNOWN
Published Date
Sep 3, 2021
Last Modified
Aug 4, 2024
Exploitation Status
No confirmed exploitation yet
Root Weakness (CWE)
N/A

Affected & Patched Versions

Affected Versions
  • n/a n/a n/a
Patched Versions
No patched version published yet
Until a fix ships, reduce exposure:
  • Restrict access to the affected service or interface to trusted networks.
  • Disable the affected feature if you do not need it.
  • Watch the vendor advisory for a firmware or software update.

What to do

Fix it during your normal patch cycle. No exploitation is confirmed yet.

  1. Check whether you run n/a n/a n/a and which version.
  2. No patched version is listed yet. Limit access to the affected service to trusted networks, and disable the feature if you can.
  3. Subscribe to the vendor advisory so you learn when a fix ships.

Timeline

  • Sep 3, 2021Published
  • Aug 4, 2024Record last modified

Score, severity and exploitation changes are tracked from the day Watchtower started logging them.

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External References

Data last checked: Nov 14, 2026 23:13 UTC