CVE-2018-0833 EXPLOIT
5.3
MEDIUM · CVSS 3.0 · EPSS 39.9% (pctl 99)
Patch early
A public exploit exists.
Description
The Microsoft Server Message Block 2.0 and 3.0 (SMBv2/SMBv3) client in Windows 8.1 and RT 8.1 and Windows Server 2012 R2 allows a denial of service vulnerability due to how specially crafted requests are handled, aka "SMBv2/SMBv3 Null Dereference Denial of Service Vulnerability".
Scoring
| CVSS | 5.3 (MEDIUM, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
| EPSS | 39.9% — more likely to be exploited than 99% of all CVEs |
| Weakness | CWE-476 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2018-02-15 |
| Last modified | 2026-06-17 |
Affected (3)
| Vendor | Product |
|---|---|
| microsoft | windows 8.1 |
| microsoft | windows rt 8.1 |
| microsoft | windows server 2012 |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Microsoft Windows 8.1/2012 R2 - SMBv3 Null Pointer Dereference Denial of Service | 2018-02-27 |
References
- http://www.securityfocus.com/bid/102924
- http://www.securitytracker.com/id/1040375
- https://github.com/KINGSABRI/CVE-in-Ruby/tree/master/CVE-2018-0833
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0833
- https://www.exploit-db.com/exploits/44189/
- http://www.securityfocus.com/bid/102924
- http://www.securitytracker.com/id/1040375
- https://github.com/KINGSABRI/CVE-in-Ruby/tree/master/CVE-2018-0833
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0833
- https://www.exploit-db.com/exploits/44189/
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