CVE-2026-7668 MEDIUM

CVE-2026-7668: MikroTik RouterOS SCEP Endpoint scep.p ASN1_STRING_data out-of-bounds

Vendor Mikrotik
Product RouterOS
Weakness CWE-125
Published May 2, 2026
Last update May 20, 2026
View on NVD All CVEs

CVSS base score

6.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A vulnerability was identified in MikroTik RouterOS 6.49.8. This vulnerability affects the function ASN1_STRING_data in the library nova/lib/www/scep.p of the component SCEP Endpoint. The manipulation of the argument transactionID/messageType leads to out-of-bounds read. The attack may be initiated remotely. The exploit is publicly available and might be used. You should upgrade the affected component. The vendor recommends to "use the latest v6.x or 7.x MikroTik RouterOS version, the reported issue should be fixed there."

Key dates

02Disclosure timeline

May 2, 2026 CVE published
May 20, 2026 Record updated