CVE-2026-21021
Citrix NetScaler Privilege Escalation Vulnerability
Description
Improper input validation in Routines prior to SMR May-2026 Release 1 allows physical attackers to launch privileged activity.
INFO
Published Date :
May 13, 2026, 4:56 a.m.
Last Modified :
May 13, 2026, 4:56 a.m.
Remotely Exploit :
No
Source :
SamsungMobile
Affected Products
The following products are affected by CVE-2026-21021
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | MEDIUM | 3af57064-a867-422c-b2ad-40307b65c458 |
Solution
- Update to the latest SMR May-2026 Release 1.
- Apply all available security patches.
- Validate access controls after updates.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-21021 vulnerability anywhere in the article.