CVE-2014-1876

What it is

The unpacker::redirect_stdio function in unpack.cpp in unpack200 in OpenJDK 6, 7, and 8; Oracle Java SE 5.0u61, 6u71, 7u51, and 8; JRockit R27.8.1 and R28.3.1; and Java SE Embedded 7u51 does not securely create temporary files when a log file cannot be opened, which allows local users to overwrite arbitrary files via a symlink attack on /tmp/unpack.log.

At a glance

Exploitability

Can be exploited locally on the machine without logging in. Limited direct impact.

Exploit odds

0.5% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2014-02-10 23:55 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 00:05 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.5% in the next 30 days (EPSS).
• Severity: 4.4 MEDIUM (CVSS).
• Fix: none linked yet, which raises it.

Details

Published

2014-02-10 23:55 UTC

Last modified

2026-06-17 00:05 UTC

Exploit probability

0.5% · EPSS, next 30 days

Weakness

CWE-59

Record status

Modified

Affected

• Oracle Openjdk 1.6.0
• Oracle Openjdk 1.7.0
• Oracle Openjdk 1.8.0

Attack profile CVSS 2.0 · 4.4

Attack vector

Local

Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2014-1876.md and follow it. Check whether this project is affected by CVE-2014-1876. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

Copy as ticket · More options · Status badge