CVE-2017-6327

HIGHNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
8.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 35%CVSS: 8.8Exploit: NoneExposed: 0

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

The Symantec Messaging Gateway before 10.6.3-267 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. In this type of occurrence, after gaining access to the system, the attacker may attempt to elevate their privileges.

CVSS v3
8.8
EG Score
9.0(high)
EG Risk
—
EPSS
98.3%
KEV
⚠ Exploited

Published

August 11, 2017

Last Modified

April 21, 2026

Advisory Details (5)

Auto-updated May 2, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-6327
generic

Security Updates Detail

https://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20170810_00
generic🟡 PoC Available

Symantec Messaging Gateway 10.6.3-2 - Root Remote Command Execution - JSP webapps Exploit

https://www.exploit-db.com/exploits/42519/
generic
http://www.securityfocus.com/bid/100135
generic

Full Disclosure: CVE-2017-6327: Symantec Messaging Gateway <= 10.6.3-2 unauthenticated root RCE

http://seclists.org/fulldisclosure/2017/Aug/28

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 59× in last 7d / 217× 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.

Showing the most recent 100 of 412 total refreshes for this CVE.

  1. 2026-07-22 22:50 UTCGHSA enrichment
  2. 2026-07-22 22:09 UTCEG score recompute
  3. 2026-07-22 19:40 UTCCISA KEV update
  4. 2026-07-22 18:27 UTCEG score recompute
  5. 2026-07-22 18:26 UTCGHSA enrichment
  6. 2026-07-22 14:04 UTCEPSS rescore
  7. 2026-07-22 14:04 UTCEPSS rescore
  8. 2026-07-22 14:04 UTCGHSA enrichment
  9. 2026-07-22 09:43 UTCGHSA enrichment
  10. 2026-07-22 05:22 UTCGHSA enrichment
  11. 2026-07-22 01:00 UTCGHSA enrichment
  12. 2026-07-21 20:36 UTCGHSA enrichment
  13. 2026-07-21 16:15 UTCEG score recompute
  14. 2026-07-21 16:15 UTCGHSA enrichment
  15. 2026-07-21 15:21 UTCEPSS rescore
  16. 2026-07-21 15:21 UTCEPSS rescore
  17. 2026-07-21 14:37 UTCCISA KEV update
  18. 2026-07-21 11:53 UTCGHSA enrichment
  19. 2026-07-21 07:30 UTCGHSA enrichment
  20. 2026-07-21 03:09 UTCGHSA enrichment
  21. 2026-07-20 22:47 UTCGHSA enrichment
  22. 2026-07-20 18:26 UTCEG score recompute
  23. 2026-07-20 18:26 UTCGHSA enrichment
  24. 2026-07-20 17:04 UTCEPSS rescore
  25. 2026-07-20 14:05 UTCGHSA enrichment
Show 75 more
  1. 2026-07-20 09:43 UTCGHSA enrichment
  2. 2026-07-20 05:23 UTCGHSA enrichment
  3. 2026-07-20 01:01 UTCGHSA enrichment
  4. 2026-07-19 20:41 UTCGHSA enrichment
  5. 2026-07-19 16:20 UTCEG score recompute
  6. 2026-07-19 16:19 UTCGHSA enrichment
  7. 2026-07-19 14:28 UTCEPSS rescore
  8. 2026-07-19 14:28 UTCEPSS rescore
  9. 2026-07-19 11:59 UTCGHSA enrichment
  10. 2026-07-19 07:38 UTCGHSA enrichment
  11. 2026-07-19 03:16 UTCGHSA enrichment
  12. 2026-07-18 22:54 UTCGHSA enrichment
  13. 2026-07-18 18:33 UTCGHSA enrichment
  14. 2026-07-18 14:12 UTCEG score recompute
  15. 2026-07-18 14:12 UTCGHSA enrichment
  16. 2026-07-18 10:00 UTCEPSS rescore
  17. 2026-07-18 09:50 UTCGHSA enrichment
  18. 2026-07-18 05:28 UTCGHSA enrichment
  19. 2026-07-18 01:07 UTCGHSA enrichment
  20. 2026-07-17 20:46 UTCGHSA enrichment
  21. 2026-07-17 16:25 UTCGHSA enrichment
  22. 2026-07-17 12:03 UTCGHSA enrichment
  23. 2026-07-17 07:42 UTCEG score recompute
  24. 2026-07-17 07:42 UTCGHSA enrichment
  25. 2026-07-17 03:21 UTCGHSA enrichment
  26. 2026-07-16 23:00 UTCGHSA enrichment
  27. 2026-07-16 18:39 UTCGHSA enrichment
  28. 2026-07-16 17:04 UTCCISA KEV update
  29. 2026-07-16 16:59 UTCEPSS rescore
  30. 2026-07-16 16:59 UTCEPSS rescore
  31. 2026-07-16 14:18 UTCGHSA enrichment
  32. 2026-07-16 09:57 UTCGHSA enrichment
  33. 2026-07-16 05:36 UTCGHSA enrichment
  34. 2026-07-16 01:15 UTCGHSA enrichment
  35. 2026-07-15 20:54 UTCGHSA enrichment
  36. 2026-07-15 16:54 UTCEPSS rescore
  37. 2026-07-15 16:49 UTCCISA KEV update
  38. 2026-07-15 16:33 UTCGHSA enrichment
  39. 2026-07-15 15:04 UTCCISA KEV update
  40. 2026-07-15 12:11 UTCGHSA enrichment
  41. 2026-07-15 07:50 UTCGHSA enrichment
  42. 2026-07-15 03:29 UTCGHSA enrichment
  43. 2026-07-15 01:56 UTCEPSS rescore
  44. 2026-07-15 01:56 UTCEPSS rescore
  45. 2026-07-14 23:08 UTCGHSA enrichment
  46. 2026-07-14 18:46 UTCGHSA enrichment
  47. 2026-07-14 18:05 UTCCISA KEV update
  48. 2026-07-14 14:25 UTCGHSA enrichment
  49. 2026-07-14 10:03 UTCGHSA enrichment
  50. 2026-07-14 05:42 UTCGHSA enrichment
  51. 2026-07-14 01:21 UTCGHSA enrichment
  52. 2026-07-13 21:00 UTCGHSA enrichment
  53. 2026-07-13 17:07 UTCCISA KEV update
  54. 2026-07-13 16:39 UTCGHSA enrichment
  55. 2026-07-13 12:18 UTCGHSA enrichment
  56. 2026-07-13 07:57 UTCGHSA enrichment
  57. 2026-07-13 03:36 UTCGHSA enrichment
  58. 2026-07-12 23:14 UTCGHSA enrichment
  59. 2026-07-12 18:52 UTCGHSA enrichment
  60. 2026-07-12 14:31 UTCGHSA enrichment
  61. 2026-07-12 10:10 UTCGHSA enrichment
  62. 2026-07-12 05:49 UTCGHSA enrichment
  63. 2026-07-12 05:43 UTCEPSS rescore
  64. 2026-07-12 01:28 UTCGHSA enrichment
  65. 2026-07-11 21:07 UTCGHSA enrichment
  66. 2026-07-11 16:46 UTCGHSA enrichment
  67. 2026-07-11 12:25 UTCGHSA enrichment
  68. 2026-07-11 08:24 UTCEPSS rescore
  69. 2026-07-11 08:04 UTCGHSA enrichment
  70. 2026-07-11 03:43 UTCGHSA enrichment
  71. 2026-07-10 23:22 UTCGHSA enrichment
  72. 2026-07-10 19:01 UTCGHSA enrichment
  73. 2026-07-10 17:52 UTCCISA KEV update
  74. 2026-07-10 14:38 UTCGHSA enrichment
  75. 2026-07-10 10:18 UTCGHSA enrichment

Publicly available exploits

(1 reference)

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

  • Exploit-DBEDB-42519✓ verified
    First seen Aug 18, 2017

    Symantec Messaging Gateway 10.6.3-2 - Root Remote Command Execution

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2017-6327?
CVE-2017-6327 is a high vulnerability published on August 11, 2017. The Symantec Messaging Gateway before 10.6.3-267 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. In this type of occurrence, after gaining access to the…
When was CVE-2017-6327 disclosed?
CVE-2017-6327 was first published in the National Vulnerability Database on August 11, 2017, with the most recent update on April 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-6327 actively exploited?
Yes. CISA added CVE-2017-6327 to the Known Exploited Vulnerabilities catalog on November 3, 2021, affecting Symantec Symantec Messaging Gateway. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2017-6327?
CVE-2017-6327 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2017-6327?
CVE-2017-6327 affects Symantec Symantec Messaging Gateway. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2017-6327?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-6327, 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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