Public proof of conceptFix available

CVE-2017-3241

A public proof of concept exists; no exploitation attested.

Published2017-01-27
WeaknessCWE-20

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

Vulnerability in the Java SE, Java SE Embedded, JRockit component of Oracle Java SE (subcomponent: RMI). Supported versions that are affected are Java SE: 6u131, 7u121 and 8u112; Java SE Embedded: 8u111; JRockit: R28.3.12. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded, JRockit. While the vulnerability is in Java SE, Java SE Embedded, JRockit, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Java SE, Java SE Embedded, JRockit. Note: This vulnerability can only be exploited by supplying data to APIs in the specified Component without using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service. CVSS v3.0 Base Score 9.0 (Confidentiality, Integrity and Availability impacts).

Timeline

dates in UTC

2017-01-2722:59CVE publishedNVD
2026-10-2319:23First public proof of conceptPoC-in-GitHub
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

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-2017-3241?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-3241?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Java (Oracle JDK)

Branch	Affected	Fixed in	Source
1.6	= 1.6	no fix published	NVD
1.7	= 1.7	no fix published	NVD
1.8	= 1.8	no fix published	NVD

Java (Oracle JDK)

Branch	Affected	Fixed in	Source
1.6	= 1.6	no fix published	NVD
1.7	= 1.7	no fix published	NVD
1.8	= 1.8	no fix published	NVD

Oracle jrockit

Branch	Affected	Fixed in	Source
—	= r28.3.12	no fix published	NVD

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

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

RHSA-2017:1216 Red Hat Product Security10 products fixed
Red Hat Security Advisory: java-1.7.1-ibm security update
RHSA-2017:0338 Red Hat Product Security115 products fixed
Red Hat Security Advisory: java-1.6.0-ibm security update
RHSA-2017:0336 Red Hat Product Security100 products fixed
Red Hat Security Advisory: java-1.7.1-ibm security update
RHSA-2017:0337 Red Hat Product Security45 products fixed
Red Hat Security Advisory: java-1.7.0-ibm security update

Full record on NVD

Fix

Vendor fix Red Hat Product Security RHSA-2017:1216 · 10 productsBefore applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
Vendor fix Red Hat Product Security RHSA-2017:0338 · 115 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 All running instances of IBM Java must be restarted for this update to take effect.

Advisories and patches

www.oracle.comPatch · Vendor Advisory

Detection

read 2026-10-23 19:23 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 2 repositories, unverifiedxfei3/CVE-2017-3241-POCscopion/CVE-2017-3241

Sources

CISA-ADPSSVC decisionnone2024-10-09
OpenCVESSVC decisionnone—
NVDCVSS 3.09read 2026-10-23
NVDCVSS 2.06.8read 2026-10-23
NVDweakness (CWE)CWE-20read 2026-10-23
FIRST EPSSEPSS score32.8 %read 2026-10-23
PoC-in-GitHubproof of concept2read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Published: 2017-01-27
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2017-3241?

Is CVE-2017-3241 actively exploited?

Active exploitation of CVE-2017-3241 has not been confirmed. Its EPSS score was 32.8% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-3241?

CVE-2017-3241 has a CVSS v3 base score of 9 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.

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