CVE-2017-6326

CRITICALNVD 10.010.0—
EchelonGraph scoreMEDIUM confidence

Score 10.0 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. NVD baseline CVSS 10.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Weaponized
10.0
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 73%
CISA-KEV: Not listedEPSS: 73%CVSS: 10.0Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

The Symantec Messaging Gateway can encounter an issue of remote code execution, which describes a situation whereby an individual may obtain the ability to execute commands remotely on a target machine or in a target process.

CVSS v3
10.0
EG Score
10.0(medium)
EPSS
99.4%
KEV
Not listed

Published

June 26, 2017

Last Modified

May 13, 2026

Advisory Details (4)

Auto-updated Jun 30, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

Security Updates Detail

https://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20170621_00
generic🟡 PoC Available

Symantec Messaging Gateway 10.6.2-7 - Remote Code Execution (Metasploit) - Python remote Exploit

https://www.exploit-db.com/exploits/42251/
generic
http://www.securitytracker.com/id/1038785
generic
http://www.securityfocus.com/bid/98893

Data Freshness Timeline

(refreshed 8× in last 7d / 22× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-07 13:42 UTCEPSS rescore
  2. 2026-07-06 16:24 UTCEPSS rescore
  3. 2026-07-06 16:24 UTCEPSS rescore
  4. 2026-07-06 02:20 UTCEPSS rescore
  5. 2026-07-06 02:20 UTCEPSS rescore
  6. 2026-07-04 06:28 UTCEPSS rescore
  7. 2026-07-02 16:54 UTCEPSS rescore
  8. 2026-07-01 15:02 UTCEPSS rescore
  9. 2026-06-29 14:03 UTCEPSS rescore
  10. 2026-06-28 04:53 UTCEPSS rescore
  11. 2026-06-25 13:47 UTCEPSS rescore
  12. 2026-06-23 21:30 UTCEPSS rescore
  13. 2026-06-21 14:54 UTCEPSS rescore
  14. 2026-06-21 14:54 UTCEPSS rescore
  15. 2026-06-17 17:50 UTCEPSS rescore
  16. 2026-06-16 17:50 UTCEPSS rescore
  17. 2026-06-16 17:50 UTCEPSS rescore
  18. 2026-06-15 17:45 UTCEPSS rescore
  19. 2026-06-13 22:57 UTCEPSS rescore
  20. 2026-06-12 23:09 UTCEPSS rescore
  21. 2026-06-10 22:15 UTCEPSS rescore
  22. 2026-06-10 13:19 UTCEPSS rescore
  23. 2026-06-07 15:22 UTCEPSS rescore
  24. 2026-06-07 15:22 UTCEPSS rescore
  25. 2026-06-05 22:44 UTCEPSS rescore
Show 41 more
  1. 2026-06-05 06:08 UTCEPSS rescore
  2. 2026-06-05 06:08 UTCEPSS rescore
  3. 2026-06-04 13:10 UTCEPSS rescore
  4. 2026-06-02 20:11 UTCEPSS rescore
  5. 2026-06-02 20:11 UTCEPSS rescore
  6. 2026-06-01 13:49 UTCEPSS rescore
  7. 2026-05-31 22:28 UTCEPSS rescore
  8. 2026-05-31 22:28 UTCEPSS rescore
  9. 2026-05-31 00:14 UTCEPSS rescore
  10. 2026-05-31 00:14 UTCEPSS rescore
  11. 2026-05-29 13:41 UTCEPSS rescore
  12. 2026-05-28 13:42 UTCEPSS rescore
  13. 2026-05-28 13:42 UTCEPSS rescore
  14. 2026-05-26 13:42 UTCEPSS rescore
  15. 2026-05-26 13:42 UTCEPSS rescore
  16. 2026-05-22 21:15 UTCEPSS rescore
  17. 2026-05-22 21:15 UTCEPSS rescore
  18. 2026-05-22 21:15 UTCEPSS rescore
  19. 2026-05-22 21:15 UTCEPSS rescore
  20. 2026-05-22 21:15 UTCEPSS rescore
  21. 2026-05-20 22:37 UTCEPSS rescore
  22. 2026-05-20 22:37 UTCEPSS rescore
  23. 2026-05-20 22:37 UTCEPSS rescore
  24. 2026-05-20 07:42 UTCEG score recompute
  25. 2026-05-20 07:42 UTCGHSA enrichment
  26. 2026-05-20 03:31 UTCEG score recompute
  27. 2026-05-20 03:31 UTCGHSA enrichment
  28. 2026-05-19 23:19 UTCEG score recompute
  29. 2026-05-19 23:19 UTCGHSA enrichment
  30. 2026-05-19 19:08 UTCEG score recompute
  31. 2026-05-19 19:08 UTCGHSA enrichment
  32. 2026-05-19 14:57 UTCEG score recompute
  33. 2026-05-19 14:57 UTCGHSA enrichment
  34. 2026-05-19 10:46 UTCEG score recompute
  35. 2026-05-19 10:45 UTCGHSA enrichment
  36. 2026-05-19 06:34 UTCEG score recompute
  37. 2026-05-19 06:34 UTCGHSA enrichment
  38. 2026-05-19 02:23 UTCEG score recompute
  39. 2026-05-19 02:22 UTCGHSA enrichment
  40. 2026-05-18 22:11 UTCEG score recompute
  41. 2026-05-18 21:30 UTCEPSS rescore

Publicly available exploits

(2 references)

Working exploit code is in the public domain (1 Metasploit module) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-42251✓ verified
    First seen Jun 26, 2017

    Symantec Messaging Gateway 10.6.2-7 - Remote Code Execution (Metasploit)

    Open source ↗
  • Metasploitexploit/linux/http/symantec_messaging_gateway_exec✓ verified
    First seen Apr 26, 2017

    Symantec Messaging Gateway Remote Code Execution

    Open source ↗

Frequently asked(5)

What is CVE-2017-6326?
CVE-2017-6326 is a critical vulnerability published on June 26, 2017. The Symantec Messaging Gateway can encounter an issue of remote code execution, which describes a situation whereby an individual may obtain the ability to execute commands remotely on a target machine or in a target process.
When was CVE-2017-6326 disclosed?
CVE-2017-6326 was first published in the National Vulnerability Database on June 26, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-6326 actively exploited?
CVE-2017-6326 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-6326?
CVE-2017-6326 has a CVSS v3 base score of 10.0 (NVD).
How do I remediate CVE-2017-6326?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-6326, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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