CVE-2017-0146
The SMBv1 server in Microsoft Windows Vista SP2; Windows Server 2008 SP2 and R2 SP1; Windows 7 SP1; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; and Windows 10 Gold, 1511, and 1607; and Windows Server 2016 allows remote attackers to execute arbitrary code via crafted packets, aka "Windows SMB Remote Code Execution Vulnerability." This vulnerability is different from those described in CVE-2017-0143, CVE-2017-0144, CVE-2017-0145, and CVE-2017-0148.
- CVSS
- 8.8Highscored by CISA
- Exploited in the wild
- Yes, in CISA KEV since 25 Mar 2022CISA deadline for US federal agencies: 15 Apr 2022known use in ransomware campaignspublic exploit code
- EPSS
- 89.9%chance of exploitation in the next 30 daystop 0.3% of scored CVEsFIRST score of 11 Nov 2026
- Fix
- Patch availablesee the advisories in the references
- Published
- 17 Mar 2017analysed here 12 Nov 2026
Do first. Apply updates per vendor instructions. (CISA's required action for this KEV entry)
Summary
Triage
- Exploitable
- At runtime
- Attack vector
- network
- Can a WAF block it?
- Partly. See why
The summary, impact and action text on this page are written by our AI analysis pipeline, or taken from the NVD description when a CVE was imported from NVD. They are not the vendor's wording: check them against the sources. A longer AI executive summary and technical analysis are generated for signed-in accounts on the Max plan.
Affected products
Products named in our analysis
- microsoft:server_message_block
- siemens:acuson_p300_firmware
- siemens:acuson_p500_firmware
- siemens:acuson_sc2000_firmware
- siemens:acuson_x700_firmware
- siemens:syngo_sc2000_firmware
- siemens:tissue_preparation_system_firmware
- siemens:versant_kpcr_molecular_system_firmware
- siemens:versant_kpcr_sample_prep_firmware
Fix and mitigation
WAF and other mitigations
Can a WAF block it? Partly. The bug can be reached over the network, so generic WAF rules may stop some attacks. Its weakness type is unknown, so we cannot be more precise.
Also consider: patch
Based on the weakness type only; no CVE-specific evidence yet. We check Cloudflare, AWS, Google Cloud Armor and Azure; for Akamai, Imperva, Fastly, F5, ask your vendor.
Remediation steps (AI-written)
Step-by-step remediation is generated for accounts on the Max plan, for CVEs that match a technology in their stack. Add this technology to your stack to see the fix checklist.
Exploitation evidence
- CISA KEV catalog
- Listed since 25 Mar 2022. Known use in ransomware campaigns.
- CISA due date
- 15 Apr 2022, the remediation deadline for US federal agencies
- CISA required action
- Apply updates per vendor instructions.
- Public exploit code
- Yes: 5 on Exploit-DB · 5 Metasploit modules
- CISA SSVC
- exploitation active, automatable no, technical impact totalAssessed by CISA 4 Feb 2025 (SSVC 2.0.3). Exploitation is none, poc (public proof of concept) or active.
Exploit-DB
- DOUBLEPULSAR - Payload Execution and Neutralization (Metasploit)remote, 2 Oct 2019, verified by Exploit-DB
- DOUBLEPULSAR - Payload Execution and Neutralization (Metasploit)remote, 2 Oct 2019, verified by Exploit-DB
- Microsoft Windows - 'EternalRomance'/'EternalSynergy'/'EternalChampion' SMB Remote Code Execution (Metasploit) (MS17-010)remote, 5 Feb 2018, verified by Exploit-DB
- Microsoft Windows Server 2008 R2 (x64) - 'SrvOs2FeaToNt' SMB Remote Code Execution (MS17-010)remote, 10 May 2017
Metasploit
- exploit/windows/smb/smb_doublepulsar_rceexploit, rank great
- exploit/windows/smb/ms17_010_psexecexploit, rank normal
- exploit/windows/smb/ms17_010_eternalblueexploit, rank average
- auxiliary/admin/smb/ms17_010_commandauxiliary, rank normal
Listed so you can judge urgency, not as a recommendation to run anything. GitHub “proofs of concept” are unvetted: some are fake or carry malware. Exploit-DB marks the entries its staff verified.
Timeline
- 17 Mar 2017Published
- 17 Apr 2017First public exploit or proof of concept31 days later
- 25 Mar 2022Added to CISA KEV (exploited in the wild)1,803 days (about 5 years) later
- 15 Apr 2022CISA remediation due date (US federal agencies)21 days later
- 4 Feb 2025CISA SSVC assessment: exploitation active1,027 days (about 3 years) later
- 21 Oct 2025CVE record last updated259 days (about 9 months) later
- 12 Nov 2026Analysed by vulneraibility.com387 days (about 1 year) later
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
| Metric | Value | What it means |
|---|---|---|
| Attack vector | NetworkReachable over the internet or any routable network. | Reachable over the internet or any routable network. |
| Attack complexity | LowRepeatable attack, no special conditions. | Repeatable attack, no special conditions. |
| Privileges required | LowThe attacker needs basic user privileges. | The attacker needs basic user privileges. |
| User interaction | NoneNo victim action needed. | No victim action needed. |
| Scope | UnchangedImpact stays within the vulnerable component. | Impact stays within the vulnerable component. |
| Confidentiality | HighTotal data disclosure possible. | Total data disclosure possible. |
| Integrity | HighComplete modification possible. | Complete modification possible. |
| Availability | HighFull outage possible. | Full outage possible. |
Common questions
Is CVE-2017-0146 being exploited?
Yes. CVE-2017-0146 appears in CISA's Known Exploited Vulnerabilities catalog, which means exploitation in the wild has been confirmed and reported. Treat it as active rather than theoretical, and patch it ahead of higher-scoring vulnerabilities that carry no exploitation evidence.
How severe is CVE-2017-0146?
CVE-2017-0146 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2017-0146?
Yes. A fix has been recorded for CVE-2017-0146. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2017-0146 affect?
CVE-2017-0146 affects microsoft:server_message_block, siemens:acuson_p300_firmware, siemens:acuson_p500_firmware, siemens:acuson_sc2000_firmware, and 5 further products or versions. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
References
12 references in the CVE record, grouped by the tags the record gives them.
Exploits (3)
- exploit-db.com /exploits/41891/
- exploit-db.com /exploits/41987/
- exploit-db.com /exploits/43970/
Other links (9)
- securityfocus.com /bid/96707
- securitytracker.com /id/1037991
- portal.msrc.microsoft.com /en-US/security-guidance/advisory/CVE-2017-0146
- cert-portal.siemens.com /productcert/pdf/ssa-701903.pdf
- ics-cert.us-cert.gov /advisories/ICSMA-18-058-02
- cert-portal.siemens.com /productcert/pdf/ssa-966341.pdf
Show 3 more
- packetstormsecurity.com /files/154690/DOUBLEPULSAR-Payload-Execution-Neutralization.html
- packetstormsecurity.com /files/156196/SMB-DOUBLEPULSAR-Remote-Code-Execution.html
- cisa.gov /known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-0146
Where the data on this page comes from
- CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
- NVD: CVSS and CPE data
- CISA KEV catalog: exploitation, date added, due date
- CISA Vulnrichment (ADP): SSVC decision points
- FIRST EPSS: exploit probability and percentile
- Exploit-DB: published exploits
- Metasploit Framework: exploit and scanner modules
Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.
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