CVE-2019-12210

What it is

In Yubico pam-u2f 1.0.7, when configured with debug and a custom debug log file is set using debug_file, that file descriptor is not closed when a new process is spawned. This leads to the file descriptor being inherited into the child process; the child process can then read from and write to it. This can leak sensitive information and also, if written to, be used to fill the disk or plant misinformation.

At a glance

Exploitability

Can be exploited over the network with a low-privilege account. High risk of data exposure, data tampering.

Exploit odds

2.1% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2019-06-04 21:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 02:14 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 2.1% in the next 30 days (EPSS).
• Severity: 8.1 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2019-06-04 21:29 UTC

Last modified

2026-06-17 02:14 UTC

Exploit probability

2.1% · EPSS, next 30 days

Record status

Modified

Affected

• Yubico pam-u2f 1.0.7

Attack profile CVSS 3.0 · 8.1

Attack vector

Network

Complexity

Low

Privileges needed

Low

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

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-2019-12210.md and follow it. Check whether this project is affected by CVE-2019-12210. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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