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CVE-2016-6809

27
FAUCET Score

CVE-2016-6809 describes a critical vulnerability in Apache Tika versions prior to 1.14, allowing remote Java code execution through deserialization of malicious objects embedded in MATLAB files, affecting Apache Nutch as well. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network with no user interaction, leading to complete compromise of confidentiality, integrity, and availability. Despite its severity, there is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed on CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
2.3.1CPE matchmatch criteria
cpe:2.3:a:apache:nutch:2.3.1:*:*:*:*:*:*:*
<= 1.13CPE matchmatch criteria
cpe:2.3:a:apache:tika:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
8.09%
Probability of exploitation in next 30 days
EPSS Percentile
94.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0809 is in the 89th percentile among its peer group of 36,833 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

mavenpatch availablevia ghsa
Product: org.apache.tika:tika-coreFixed in: 1.14
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-eclipse46-tika

Vendor Advisories (2)

mavenGHSA-j8g6-2wh7-6439critical

Apache Tika allows Java code execution for serialized objects embedded in MATLAB files

Oct 17, 2018
redhatCVE-2016-6809Moderate

tika: Native deserialization of Java objects in matlab files

Nov 10, 2016

References

dist.apache.org / repos/dist/release/tika/CHANGES-1.14.txt
Release NotesVendor Advisory
seclists.org / bugtraq/2016/Nov/40
Mailing ListThird Party AdvisoryVDB Entry
lists.apache.org / thread.html/91eb639ef619b9a26b40020ca6732e7dbe457f7322ed5f1df49e411a%40%3Cdev.nutch.apache.org%3E
lists.apache.org / thread.html/d2375da29d89e679abf5d845db76d6f798fdc6f7d44f2c788e8a0fb9%40%3Cuser.nutch.apache.org%3E
lists.apache.org / thread.html/e414754a6c57ce7194b731e211cd6b2cbb41f2c7000e3fb9c6b6ec78%40%3Cdev.lucene.apache.org%3E
lists.apache.org / thread.html/r2f6f6c130b12b7332f323f74d031072b1517065ce28a22346791ffb6%40%3Cissues.lucene.apache.org%3E
lists.apache.org / thread.html/rfd3646bb724b66b1a9ddef69e692da2b7a727a8799551c78eedf0a0f%40%3Cissues.lucene.apache.org%3E
securityfocus.com / bid/94247
Third Party AdvisoryVDB Entry