CVE-2026-7668
Deferred Deferred - Pending Action
Out-of-Bounds Read in MikroTik RouterOS SCEP Endpoint

Publication date: 2026-05-02

Last updated on: 2026-05-20

Assigner: VulDB

Description
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."
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Meta Information
Published
2026-05-02
Last Modified
2026-05-20
Generated
2026-06-16
AI Q&A
2026-05-03
EPSS Evaluated
2026-06-15
NVD
CVE-2026-7668
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
mikrotik routeros 6.49.8
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-119 The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
CWE-125 The product reads data past the end, or before the beginning, of the intended buffer.
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Executive Summary

This vulnerability exists in MikroTik RouterOS version 6.49.8, specifically in the ASN1_STRING_data function within the SCEP Endpoint component. It involves improper handling of the transactionID/messageType arguments, which leads to an out-of-bounds read. This means that the software reads data outside the intended memory boundaries, potentially causing unexpected behavior or crashes.

The vulnerability can be exploited remotely, and a public exploit is available. The vendor was informed but did not respond.

Impact Analysis

Exploitation of this vulnerability can lead to unauthorized reading of memory outside the intended bounds, which may result in information disclosure, denial of service, or other unpredictable behavior in the affected MikroTik RouterOS device.

Since the attack can be initiated remotely without authentication, it poses a significant risk to network security and device stability.

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