CVE-2026-67276

CVE Enrichment

CVSS: 9.2 CRITICAL
EPSS: 6.45%
EPSS Percentile: 93.59%
CISA KEV: Not listed

Description

RouterOS does not compare the complete RSA public key when matching an SSH authentication request to an authorized user key, checking the key type and modulus but omitting the exponent. Because signature verification uses the client-supplied key, an attacker knowing an authorized RSA modulus can supply a key with exponent one, forge a valid signature, and open an SSH command channel as the target user without the private key.This issue affects only 7.x branch was fixed in versions: 7.23.4 (Long-term) and 7.24.2 (Stable)

Technical Details

CVSS Version: 4.0
CNA / NVD Source: cvd@cert.pl
Published: 06-Sep-2026 03:17
Last Modified: 25-Sep-2026 21:57
EPSS Date: 2026-10-13
CWE: CWE-347

CVSS Vector


            CVSS:4.0                            AV:N /
                            AC:H /
                            AT:N /
                            PR:N /
                            UI:N /
                            VC:H /
                            VI:H /
                            VA:H /
                            SC:N /
                            SI:N /
                            SA:N /
                            E:X /
                            CR:X /
                            IR:X /
                            AR:X /
                            MAV:X /
                            MAC:X /
                            MAT:X /
                            MPR:X /
                            MUI:X /
                            MVC:X /
                            MVI:X /
                            MVA:X /
                            MSC:X /
                            MSI:X /
                            MSA:X /
                            S:X /
                            AU:X /
                            R:X /
                            V:X /
                            RE:X /
                            U:X

Affected Products / Versions

mikrotik / routeros
Version / affected range: * · from (inclusive) 7.9 · before (exclusive) 7.23.4
cpe:2.3:o:mikrotik:routeros:*:*:*:*:*:*:*:*
mikrotik / routeros
Version / affected range: * · from (inclusive) 7.24 · before (exclusive) 7.24.2
cpe:2.3:o:mikrotik:routeros:*:*:*:*:*:*:*:*

References

Last enrichment sync: 14-Oct-2026 07:24
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (1)

CVE-2026-67276 Recorded Future Reports 94 High-Impact Vulnerabilities in September 2026, Including 80 Actively Exploited

CVE (76)

Malware (6)

Threat Actors (8)

Vendors (10)

Products (67)

Tools (7)

Industries (1)

Countries (2)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.