Full Report
MikroTik security advisory (AV26-958)
Analysis Summary
# Vulnerability: MikroTik RouterOS Unspecified Security Flaw (AV26-958)
## CVE Details
- **CVE ID:** Pending / Not explicitly listed in advisory (Referenced via AV26-958)
- **CVSS Score:** N/A (Severity not explicitly rated in the initial bulletin, though typically high for RouterOS core vulnerabilities)
- **CWE:** Unknown (Technical root cause not specified)
## Affected Systems
- **Products:** MikroTik RouterOS
- **Versions:** All versions prior to **7.25beta5**
- **Configurations:** All default installations running affected versions.
## Vulnerability Description
While the specific technical mechanics (such as buffer overflow, logic error, or privilege escalation) are not detailed in the AV26-958 bulletin, the flaw resides within the RouterOS operating system core. The release of version 7.25beta5 specifically addresses a security-related regression or flaw identified in earlier iterations of the v7 branch.
## Exploitation
- **Status:** Unknown / No publicly reported exploitation in the wild at the time of this bulletin.
- **Complexity:** Unknown
- **Attack Vector:** Network (Assumed based on RouterOS architecture)
## Impact
- **Confidentiality:** Potential Risk
- **Integrity:** Potential Risk
- **Availability:** Potential Risk
## Remediation
### Patches
MikroTik has addressed this vulnerability in the following development release:
- **RouterOS 7.25beta5 [development]**
Users are encouraged to monitor the stable release channel for a backported fix if they do not wish to run beta software.
### Workarounds
- **Management Access:** Restrict access to the RouterOS management interface (WinBox, WebFig, SSH) to trusted IP addresses only using firewall rules (`/ip firewall filter`).
- **Disable Unused Services:** Disable any unnecessary services under `/ip service`.
## Detection
- **Indicators of Compromise:** Monitor system logs for unexpected reboots, unauthorized configuration changes, or unfamiliar administrative users.
- **Detection methods and tools:** Compare current running version against the patched version list using the command `/system package print`.
## References
- **Vendor Advisory:** hxxps[://]forum[.]mikrotik[.]com/viewtopic[.]php?t=211246 (General Release Thread)
- **Source Bulletin:** hxxps[://]www[.]cyber[.]gc[.]ca/en/alerts-advisories/mikrotik-security-advisory-av26-958
- **MikroTik Download Page:** hxxps[://]mikrotik[.]com/download