CVE-2024-27686: n/a
CVE-2024-27686 is a denial of service vulnerability in Mikrotik RouterOS (x86) versions 6.40.5 through 6.49.10. A remote attacker can cause the device to crash by sending crafted packets to the SMB service on TCP port 445. This vulnerability does not impact confidentiality or integrity but results in service disruption. The issue is fixed in RouterOS version 7. No official patch or remediation guidance is currently provided by the vendor.
AI Analysis
Technical Summary
Mikrotik RouterOS (x86) versions 6.40.5 through 6.49.10 contain a denial of service vulnerability (CWE-400) exploitable via specially crafted packets sent to the SMB service on TCP port 445. Successful exploitation causes the device to crash, impacting availability. The vulnerability has a CVSS 3.1 base score of 7.5 (high severity) with network attack vector, low attack complexity, no privileges or user interaction required, and no impact on confidentiality or integrity. The issue is resolved in RouterOS version 7.
Potential Impact
An attacker can remotely cause a denial of service by crashing the affected RouterOS device, leading to network disruption. There is no impact on data confidentiality or integrity. No known exploits are reported in the wild at this time.
Mitigation Recommendations
A fix is available by upgrading to Mikrotik RouterOS version 7, where this vulnerability is resolved. No other official remediation or temporary mitigations are currently documented. Patch status is not yet confirmed beyond the version upgrade recommendation; users should consult Mikrotik advisories for updates.
CVE-2024-27686: n/a
Description
CVE-2024-27686 is a denial of service vulnerability in Mikrotik RouterOS (x86) versions 6.40.5 through 6.49.10. A remote attacker can cause the device to crash by sending crafted packets to the SMB service on TCP port 445. This vulnerability does not impact confidentiality or integrity but results in service disruption. The issue is fixed in RouterOS version 7. No official patch or remediation guidance is currently provided by the vendor.
CVSS v3.1
Score 7.5high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Mikrotik RouterOS (x86) versions 6.40.5 through 6.49.10 contain a denial of service vulnerability (CWE-400) exploitable via specially crafted packets sent to the SMB service on TCP port 445. Successful exploitation causes the device to crash, impacting availability. The vulnerability has a CVSS 3.1 base score of 7.5 (high severity) with network attack vector, low attack complexity, no privileges or user interaction required, and no impact on confidentiality or integrity. The issue is resolved in RouterOS version 7.
Potential Impact
An attacker can remotely cause a denial of service by crashing the affected RouterOS device, leading to network disruption. There is no impact on data confidentiality or integrity. No known exploits are reported in the wild at this time.
Mitigation Recommendations
A fix is available by upgrading to Mikrotik RouterOS version 7, where this vulnerability is resolved. No other official remediation or temporary mitigations are currently documented. Patch status is not yet confirmed beyond the version upgrade recommendation; users should consult Mikrotik advisories for updates.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2024-02-26T00:00:00.000Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69fd79e7cbff5d86109b77b5
Added to database: 05/08/2026, 05:51:35 UTC
Last enriched: 05/15/2026, 10:57:34 UTC
Last updated: 07/31/2026, 19:22:51 UTC
Views: 95
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