What is CVE-2021-1629?

CVE-2021-1629 is a medium-severity vulnerability in Linux Kernel, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2021-03-26.

How severe is CVE-2021-1629?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Open Redirect in Linux Kernel

CVE-2021-1629

Tableau Server fails to validate certain URLs that are embedded in emails sent to Tableau Server users.

Vulnerability class: Open Redirect

Published 2021-03-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.013 (70.1th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Linux Kernel
Microsoft Windows
Tableau Server
Tableau — versions Tableau Server versions affected on both Windows and Linux are: 2019.4 through 2019.4.17 2020.1 through 2020.1.13 2020.2 through 2020.2.10 2020.3 through 2020.3.6 2020.4 through 2020.4.2

Weakness classification (CWE)

CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

References

help.salesforce.com/articleView (Vendor Advisory)
seclists.org/fulldisclosure/2021/Apr/22 (mailing-list, Mailing List, Third Party Advisory)
packetstormsecurity.com/files/162138/Tableau-Server-Open-Redirection.html (Exploit, VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2021-1629?: CVE-2021-1629 is a medium-severity vulnerability in Linux Kernel, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2021-03-26.
How severe is CVE-2021-1629?: Medium severity. CVSS v3 base score is 6.1 out of 10.