Microsoft SMBv1 known exploited vulnerabilities
We track 4 CVEs in Microsoft SMBv1. All of them are on CISA's Known Exploited Vulnerabilities catalog, meaning CISA has evidence of exploitation in the wild (listed 2022–2022). CISA flags 4 of them as used in ransomware campaigns. The most recent is CVE-2017-0147, added to KEV on .
Also listed as: SMBv1 server. CISA, NVD and vendor advisories name the same product differently; each CVE page keeps the wording from its source.
- CVEs tracked
- 4
- On CISA KEV
- 4
- Ransomware use
- 4
- Rated critical
- 0
Every Microsoft SMBv1 CVE we track
| CVE / Vulnerability | Severity | CVSS | EPSS | Added to KEV | Patch by |
|---|---|---|---|---|---|
| CVE-2017-0147 Microsoft Windows SMBv1 Information Disclosure Vulnerabilityransomware use | [ HIGH ] | 7.5 | 99.7% | ||
| CVE-2017-0148 Microsoft SMBv1 Server Remote Code Execution Vulnerabilityransomware use | [ HIGH ] | 8.1 | 99.4% | ||
| CVE-2017-0145 Microsoft SMBv1 Remote Code Execution Vulnerabilityransomware use | [ HIGH ] | 8.8 | 89.8% | ||
| CVE-2017-0144 Microsoft SMBv1 Remote Code Execution Vulnerabilityransomware use | [ HIGH ] | 8.8 | 99.2% |
Sorted by date added to KEV. Severity and CVSS as stated by NVD or the vendor; EPSS from FIRST.org. "Patch by" is CISA's BOD 22-01 deadline for US federal agencies, a useful priority signal for everyone else. Machine-readable: /api/v1/vendors/microsoft.json.
Other Microsoft products
Every row links to its CVE record with the CISA required action, catalog coverage and primary sources. We describe impact and remediation only; no exploit code. See the full KEV tracker or compare KEV catalogs.