CVE-2026-84411
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
The web management service in affected RouterOS versions contains an integer underflow in its HTTP request body handling that is reachable before authentication. This can be leveraged by an unauthenticated network attacker to achieve arbitrary code execution as root, or to cause a denial of service, using a single crafted request.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| MikroTik | RouterOS | 0 < 7.24 | affected |
| MikroTik | RouterOS | 7.24 | unaffected |
Weaknesses
- CWE-191: CWE-191
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: yes
- Technical Impact: total
References
- https://mikrotik.com/download
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-272-06
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-272-06.json
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.