No exploitation reportedFix available

CVE-2016-8747

Q: Is CVE-2016-8747 actively exploited?

Active exploitation of CVE-2016-8747 has not been confirmed. Its EPSS score was 7.1% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2016-8747?

CVE-2016-8747 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

No exploitation reported by the sources we read.

Published2017-03-14
Fixed in8.5.10
WeaknessCWE-200

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An information disclosure issue was discovered in Apache Tomcat 8.5.7 to 8.5.9 and 9.0.0.M11 to 9.0.0.M15 in reverse-proxy configurations. Http11InputBuffer.java allows remote attackers to read data that was intended to be associated with a different request.

Timeline

dates in UTC

2017-03-1409:59CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2016-8747?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2016-8747?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Apache Tomcat

Branch	Affected	Fixed in	Source
8.5	≥ 8.5.7, < 8.5.10	8.5.10	NVD
9.0	= 9.0.0	no fix published	NVD

Netapp oncommand insight

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

Netapp oncommand shift

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Apache Tomcat to 8.5.10

Advisories and patches

svn.apache.orgPatch · Vendor Advisory
svn.apache.orgPatch · Vendor Advisory
tomcat.apache.orgRelease Notes · Vendor Advisory
tomcat.apache.orgRelease Notes · Vendor Advisory
lists.apache.orgPatch
lists.apache.orgPatch

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2024-10-15
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.17.52024-10-15
NVDCVSS 3.17.5read 2026-10-23
NVDCVSS 2.05read 2026-10-23
NVDweakness (CWE)CWE-200read 2026-10-23
FIRST EPSSEPSS score7.1 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published: 2017-03-14
Last Modified: 2026-06-17
NVD status: Analyzed

Frequently asked questions

What is CVE-2016-8747?

Is CVE-2016-8747 actively exploited?

Active exploitation of CVE-2016-8747 has not been confirmed. Its EPSS score was 7.1% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2016-8747?

CVE-2016-8747 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

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