CVE-2016-8735

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2023-05-12), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, nvd
Trending — 4 sources updated this weekExploited in the wild
9.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • 1,807 internet-exposed hosts are running an affected version right now
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 90%CVSS: 9.8Exploit: NoneExposed: 1,807

A fix is available — apply it.

Remote code execution is possible with Apache Tomcat before 6.0.48, 7.x before 7.0.73, 8.x before 8.0.39, 8.5.x before 8.5.7, and 9.x before 9.0.0.M12 if JmxRemoteLifecycleListener is used and an attacker can reach JMX ports. The issue exists because this listener wasn't updated for consistency with the CVE-2016-3427 Oracle patch that affected credential types.

Live · internet exposure

1,807 internet-exposed hosts are running an affected version of CVE-2016-8735 right now.

across 86 countries (China, United States, Korea, Republic of, Germany, India)top: tomcat
See the live KEV-Exposure radar →Found passively from public internet-scan data — aggregate, host-redacted.

EchelonGraph is the only CVE feed that fuses live vulnerability intelligence with its own live internet-exposure radar — so you see not just that a CVE is exploited, but how much of the internet is exposed to it right now.

CVSS v3
9.8
EG Score
9.8(high)
EPSS
99.8%
KEV
⚠ Exploited

Published

April 6, 2017

Last Modified

April 21, 2026

Advisory Details (6)

Auto-updated Apr 30, 2026
No patch confirmed yet.
generic

Apache Tomcat® - Apache Tomcat 9 vulnerabilities

http://tomcat.apache.org/security-9.html
generic

Apache Tomcat® - Apache Tomcat 8 vulnerabilities

http://tomcat.apache.org/security-8.html
generic

Apache Tomcat® - Apache Tomcat 7 vulnerabilities

http://tomcat.apache.org/security-7.html
generic

Apache Tomcat® - Apache Tomcat 6 vulnerabilities

http://tomcat.apache.org/security-6.html
generic

oss-sec: [SECURITY] CVE-2016-8735 Apache Tomcat Remote Code Execution

http://seclists.org/oss-sec/2016/q4/502
generic
http://rhn.redhat.com/errata/RHSA-2017-0457.html

Patch Availability(6)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibservlet2.5-java-doc (6.0.45+dfsg-1ubuntu0.1) @ xenial2026-07-12ubuntu
ubuntutomcat6-user (6.0.39-1ubuntu0.1+esm2) @ trusty2026-07-12ubuntu
ubuntutomcat8 (8.0.37-1ubuntu0.1) @ yakkety2026-07-12ubuntu
redhatpatch2017-03-07redhat
redhattomcat-vault-0:1.0.8-9.Final_redhat_2.1.ep7.el72017-03-07redhat
redhattomcat-vault-0:1.0.8-9.Final_redhat_2.1.ep7.el62017-03-07redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(2 across 1 ecosystem)
Maven(2)
PackageVulnerable rangeFixed inDependents
org.apache.tomcat:tomcat-catalina9.0.0.M1 ... 9.0.0.M9 (8 versions)9.0.0.M12—
org.apache.tomcat:tomcat-catalina-jmx-remote9.0.0.M1 ... 9.0.0.M9 (8 versions)9.0.0.M12—

All Vendor Advisories

(6)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 82× in last 7d / 346× 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 532 total refreshes for this CVE.

  1. 2026-07-12 16:05 UTCEG score recompute
  2. 2026-07-12 16:05 UTCVendor advisory
  3. 2026-07-12 11:46 UTCEG score recompute
  4. 2026-07-12 11:46 UTCVendor advisory
  5. 2026-07-12 07:27 UTCEG score recompute
  6. 2026-07-12 07:27 UTCVendor advisory
  7. 2026-07-12 03:07 UTCEG score recompute
  8. 2026-07-12 03:07 UTCVendor advisory
  9. 2026-07-11 22:48 UTCEG score recompute
  10. 2026-07-11 22:48 UTCVendor advisory
  11. 2026-07-11 18:29 UTCEG score recompute
  12. 2026-07-11 18:29 UTCVendor advisory
  13. 2026-07-11 14:10 UTCEG score recompute
  14. 2026-07-11 14:10 UTCVendor advisory
  15. 2026-07-11 09:47 UTCEG score recompute
  16. 2026-07-11 09:47 UTCVendor advisory
  17. 2026-07-11 05:28 UTCEG score recompute
  18. 2026-07-11 05:28 UTCVendor advisory
  19. 2026-07-11 01:09 UTCEG score recompute
  20. 2026-07-11 01:09 UTCVendor advisory
  21. 2026-07-10 20:50 UTCEG score recompute
  22. 2026-07-10 20:50 UTCVendor advisory
  23. 2026-07-10 17:52 UTCCISA KEV update
  24. 2026-07-10 16:31 UTCEG score recompute
  25. 2026-07-10 16:31 UTCVendor advisory
Show 75 more
  1. 2026-07-10 12:12 UTCEG score recompute
  2. 2026-07-10 12:12 UTCVendor advisory
  3. 2026-07-10 07:52 UTCEG score recompute
  4. 2026-07-10 07:52 UTCVendor advisory
  5. 2026-07-10 03:33 UTCEG score recompute
  6. 2026-07-10 03:33 UTCVendor advisory
  7. 2026-07-09 23:13 UTCEG score recompute
  8. 2026-07-09 23:13 UTCVendor advisory
  9. 2026-07-09 19:06 UTCEPSS rescore
  10. 2026-07-09 18:53 UTCEG score recompute
  11. 2026-07-09 18:53 UTCVendor advisory
  12. 2026-07-09 14:34 UTCEG score recompute
  13. 2026-07-09 14:34 UTCVendor advisory
  14. 2026-07-09 10:13 UTCEG score recompute
  15. 2026-07-09 10:13 UTCVendor advisory
  16. 2026-07-09 05:54 UTCEG score recompute
  17. 2026-07-09 05:54 UTCVendor advisory
  18. 2026-07-09 01:35 UTCEG score recompute
  19. 2026-07-09 01:35 UTCVendor advisory
  20. 2026-07-08 21:16 UTCEG score recompute
  21. 2026-07-08 21:16 UTCVendor advisory
  22. 2026-07-08 16:53 UTCEG score recompute
  23. 2026-07-08 16:53 UTCVendor advisory
  24. 2026-07-08 12:34 UTCEG score recompute
  25. 2026-07-08 12:34 UTCVendor advisory
  26. 2026-07-08 08:13 UTCEG score recompute
  27. 2026-07-08 08:13 UTCVendor advisory
  28. 2026-07-08 03:54 UTCEG score recompute
  29. 2026-07-08 03:54 UTCVendor advisory
  30. 2026-07-07 23:36 UTCEG score recompute
  31. 2026-07-07 23:36 UTCVendor advisory
  32. 2026-07-07 19:17 UTCEG score recompute
  33. 2026-07-07 19:17 UTCVendor advisory
  34. 2026-07-07 19:01 UTCCISA KEV update
  35. 2026-07-07 17:16 UTCCISA KEV update
  36. 2026-07-07 14:58 UTCEG score recompute
  37. 2026-07-07 14:58 UTCVendor advisory
  38. 2026-07-07 10:34 UTCEG score recompute
  39. 2026-07-07 10:34 UTCVendor advisory
  40. 2026-07-07 06:14 UTCEG score recompute
  41. 2026-07-07 06:14 UTCVendor advisory
  42. 2026-07-07 01:55 UTCEG score recompute
  43. 2026-07-07 01:55 UTCVendor advisory
  44. 2026-07-06 21:36 UTCEG score recompute
  45. 2026-07-06 21:36 UTCVendor advisory
  46. 2026-07-06 17:17 UTCEG score recompute
  47. 2026-07-06 17:17 UTCVendor advisory
  48. 2026-07-06 12:56 UTCEG score recompute
  49. 2026-07-06 12:56 UTCVendor advisory
  50. 2026-07-06 08:37 UTCEG score recompute
  51. 2026-07-06 08:37 UTCVendor advisory
  52. 2026-07-06 04:16 UTCEG score recompute
  53. 2026-07-06 04:16 UTCVendor advisory
  54. 2026-07-05 23:55 UTCEG score recompute
  55. 2026-07-05 23:55 UTCVendor advisory
  56. 2026-07-05 19:36 UTCEG score recompute
  57. 2026-07-05 19:36 UTCVendor advisory
  58. 2026-07-05 15:17 UTCEG score recompute
  59. 2026-07-05 15:17 UTCVendor advisory
  60. 2026-07-05 10:57 UTCEG score recompute
  61. 2026-07-05 10:57 UTCVendor advisory
  62. 2026-07-05 06:37 UTCEG score recompute
  63. 2026-07-05 06:37 UTCVendor advisory
  64. 2026-07-05 02:15 UTCEG score recompute
  65. 2026-07-05 02:15 UTCVendor advisory
  66. 2026-07-04 21:56 UTCEG score recompute
  67. 2026-07-04 21:56 UTCVendor advisory
  68. 2026-07-04 17:37 UTCEG score recompute
  69. 2026-07-04 17:37 UTCVendor advisory
  70. 2026-07-04 13:18 UTCEG score recompute
  71. 2026-07-04 13:18 UTCVendor advisory
  72. 2026-07-04 08:59 UTCEG score recompute
  73. 2026-07-04 08:59 UTCVendor advisory
  74. 2026-07-04 04:39 UTCEG score recompute
  75. 2026-07-04 04:39 UTCVendor advisory

Frequently asked(6)

What is CVE-2016-8735?
CVE-2016-8735 is a critical vulnerability published on April 6, 2017. Remote code execution is possible with Apache Tomcat before 6.0.48, 7.x before 7.0.73, 8.x before 8.0.39, 8.5.x before 8.5.7, and 9.x before 9.0.0.M12 if JmxRemoteLifecycleListener is used and an attacker can reach JMX ports. The issue exists because this listener wasn't updated for consistency…
When was CVE-2016-8735 disclosed?
CVE-2016-8735 was first published in the National Vulnerability Database on April 6, 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-2016-8735 actively exploited?
Yes. CISA added CVE-2016-8735 to the Known Exploited Vulnerabilities catalog on May 12, 2023, affecting Apache Tomcat. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2016-8735?
CVE-2016-8735 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2016-8735?
CVE-2016-8735 affects Apache Tomcat. 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-2016-8735?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-8735, 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.

Dependency Blast Radius

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