ICSA-26-211-01: MikroTik RouterOS
CISA advisory · released 2026-07-30
Source record Collected from CISA's CSAF advisory feed
- Distribution label in the document: TLP:WHITE
- Revision 1, 2026-07-30 (final)
CISA's summary
Advisory Summary: Successful exploitation of this vulnerability could allow an attacker to extract the router's WireGuard private key in plaintext using only low‑privilege API access, enabling full VPN impersonation and decryption of all associated traffic.
Products, as the advisory lists them
| Vendor | Product | Version |
|---|---|---|
| MikroTik | RouterOS | vers:all/* |
DeSpy has not checked any unit, hardware revision or firmware.
Vulnerabilities in this advisory
- CVE-2026-14227 · CWE-613
An API session‑management flaw in products with the MikroTik RouterOS API enabled are vulnerable to a Insufficient Session Expiration vulnerability. This could allow active sessions to retain their previous permission set after inactivity timeouts or user‑group changes. As a result, an authenticated user whose permissions have been reduced may continue accessing information.
Acknowledgments, as the advisory lists them
- Andre Santos: reported this vulnerability to CISA
The advisory's legal notice
This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy).
Sources
DeSpy's copy of this version is dated 2026-09-28.
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