CVE-2026-7668: Out-of-Bounds Read in MikroTik RouterOS
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."
AI Analysis
Technical Summary
This vulnerability in MikroTik RouterOS 6.49.8 affects the ASN1_STRING_data function within the SCEP Endpoint component (nova/lib/www/scep.p). By manipulating the transactionID or messageType arguments, an attacker can cause an out-of-bounds read, potentially leading to information disclosure or application instability. The vulnerability is remotely exploitable without privileges or user interaction. The vendor advises upgrading to the latest v6.x or v7.x RouterOS versions to remediate the issue.
Potential Impact
The out-of-bounds read vulnerability may allow remote attackers to read memory beyond intended boundaries, which could lead to information disclosure or cause the affected service to crash. The CVSS 4.0 score of 6.9 indicates a medium severity impact with low complexity and no required privileges or user interaction. There are no confirmed reports of exploitation in the wild.
Mitigation Recommendations
The vendor recommends upgrading to the latest MikroTik RouterOS versions in the v6.x or v7.x series, where this vulnerability is addressed. Since no official patch link or advisory is provided, users should verify the update status with MikroTik's official resources before upgrading. Patch status is not yet confirmed in the provided data—check the vendor advisory for current remediation guidance.
CVE-2026-7668: Out-of-Bounds Read in MikroTik RouterOS
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."
CVSS v4.0
Score 6.9medium
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in MikroTik RouterOS 6.49.8 affects the ASN1_STRING_data function within the SCEP Endpoint component (nova/lib/www/scep.p). By manipulating the transactionID or messageType arguments, an attacker can cause an out-of-bounds read, potentially leading to information disclosure or application instability. The vulnerability is remotely exploitable without privileges or user interaction. The vendor advises upgrading to the latest v6.x or v7.x RouterOS versions to remediate the issue.
Potential Impact
The out-of-bounds read vulnerability may allow remote attackers to read memory beyond intended boundaries, which could lead to information disclosure or cause the affected service to crash. The CVSS 4.0 score of 6.9 indicates a medium severity impact with low complexity and no required privileges or user interaction. There are no confirmed reports of exploitation in the wild.
Mitigation Recommendations
The vendor recommends upgrading to the latest MikroTik RouterOS versions in the v6.x or v7.x series, where this vulnerability is addressed. Since no official patch link or advisory is provided, users should verify the update status with MikroTik's official resources before upgrading. Patch status is not yet confirmed in the provided data—check the vendor advisory for current remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-05-02T05:56:44.888Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69f65ce4cbff5d861022aff1
Added to database: 5/2/2026, 8:21:56 PM
Last enriched: 5/20/2026, 6:15:40 PM
Last updated: 6/16/2026, 5:32:16 PM
Views: 1654
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