CVE-2026-93345
HIGHDescription
MikroTik RouterOS before 7.25beta4 contains an improper input validation vulnerability in the labelled-VPN NLRI iterators of the routing service that allows an unauthenticated on-path attacker to crash the BGP service by sending a malformed MP_REACH_NLRI UPDATE message with a prefix-length value below the minimum valid for a labelled-VPN NLRI, which passes validation while describing a route with a negative-length address portion. Attackers can repeatedly send a single BGP UPDATE packet carrying a VPNv4 or VPNv6 NLRI with an out-of-bounds prefix-length to indefinitely hold down the BGP plane, causing session termination without a NOTIFICATION and triggering a service malfunction on the device. The fix is carried only in 7.25beta4, a development build; the current stable release 7.24.2 and the current long-term release 7.23.5 both remain affected.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
TridentStack Control tracks known vulnerabilities across your Windows, macOS, and Linux fleet and shows the fix as soon as one is published. See how it works
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploit Intelligence
Moderate risk: more likely to be exploited than 41% of all known CVEs.
References
Related Vulnerabilities
Other CWE-1284 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2022-20699 | Critical | 10.0 | 72% | KEV | - |
| CVE-2021-43267 | Critical | 9.8 | 58% | - | Fix |
| CVE-2022-31629 | Medium | 6.5 | 50% | - | Fix |
| CVE-2025-9316 | Medium | 6.9 | 37% | - | - |
| CVE-2022-36620 | High | 7.5 | 24% | - | - |
| CVE-2008-1440 | High | 7.1 | 23% | - | - |
Common questions
How do I fix CVE-2026-93345?
No published fix for CVE-2026-93345 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2026-93345 being actively exploited?
Not that we know of. CVE-2026-93345 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.49% is the estimated probability that it will be exploited in the next 30 days. That is higher than 41% of all scored CVEs.
How severe is CVE-2026-93345?
CVE-2026-93345 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
Embed a live status badge for CVE-2026-93345
Markdown
[](https://tridentstack.com/cve/CVE-2026-93345)HTML
<a href="https://tridentstack.com/cve/CVE-2026-93345"><img src="https://tridentstack.com/cve/badge/CVE-2026-93345.svg" alt="CVE-2026-93345"></a>Find and fix vulnerabilities across your fleet
TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.
This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-09-25.