high Known exploitedREV. 01
CVE-2026-67279MikroTik RouterOS — Secure Shell Rekey Skips Authentication
RouterOS accepts commands over Secure Shell (SSH) after a client-requested rekey even though no login happened. An unauthenticated client can create or overwrite files, including support files with configuration data. It can be chained with CVE-2026-86060.
Read the risk
THE VITAL STATS- CVSS score
- 6.5/ 10 CVSS v3.1
- EPSS probability
- 2.3% Likelihood of exploitation
- Attack complexity
- Low Conditions needed to exploit
- Known exploited
- Yes — CISA KEV
- CVE published
- 2026-09-05
- Added to KEV
- 2026-09-25
- CISA due date
- 2026-09-28
- Exploit published
- Yes
- Confidence
- high
- Kill chain
- initial access
- MITRE ATT&CK
- —
- Severity
- high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Attacker needsNetwork access to the router's Secure Shell service. No account is needed.
Fixed in6.49.21 (Long-term), 7.23.4 (Long-term), 7.24.2 (Stable)
Behind the card
5 REFERENCES- 01CVE recordNVD recordnvd.nist.gov
- 02CISACISA Known Exploited Vulnerabilities catalogcisa.gov
- 03Vendor advisorycert.plcert.pl
- 04Vendor advisorymikrotik.commikrotik.com
- 05Exploitnpratley.netnpratley.net
Field-level provenanceTRACE THE SOURCES +
Which source supports each field, when it was retrieved, and who extracted it.
| Fields | Source | Retrieved | Extractor | Confidence |
|---|---|---|---|---|
| cvss, exploitation.attack_complexity, exploitation.exploit_available, published_at, references | nvd.nist.gov | 2026-11-05 | scrty-crds-pipeline/0.1 | high |
| exploitation.known_exploited, exploitation.kev_added, exploitation.kev_due | cisa.gov | 2026-11-05 | scrty-crds-pipeline/0.1 | high |
| epss | api.first.org | 2026-11-05 | scrty-crds-pipeline/0.1 | high |
| title, subtitle, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisites | nvd.nist.gov | 2026-11-05 | claude-code | high |
Printing history
THE RECORD- r1Initial base card
History unavailable — this build has no Git history for the card file.