CVE-2019-11044

Name: CVE-2019-11044
Creator: NVD / NIST
Published: 2019-12-23T03:15:10.913+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 5.12%

Last modified Jun 17, 2026

CVE-2019-11044 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0 on Windows, PHP link() function accepts filenames with embedded \0 byte and treats them as terminating at that byte. This could lead to security vulnerabilities, e.g. EPSS estimates a 5.12% chance of exploitation in the next 30 days.

Description

In PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0 on Windows, PHP link() function accepts filenames with embedded \0 byte and treats them as terminating at that byte. This could lead to security vulnerabilities, e.g. in applications checking paths that the code is allowed to access.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

5.12%

91.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-170

Affected Software

Vendor	Product	Versions
Php	Php	>= 7.2.0, <= 7.2.26
Php	Php	>= 7.3.0, <= 7.3.13
Php	Php	7.4.0
Tenable	Securitycenter	< 5.19.0
Fedoraproject	Fedora	30
Fedoraproject	Fedora	31

References

https://bugs.php.net/bug.php?id=78862Exploit, Mailing List, Patch, Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N7GCOAE6KVHYJ3UQ4KLPLTGSLX6IRVRN/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWRQPYXVG43Q7DXMXH6UVWMKWGUW552F/
https://security.netapp.com/advisory/ntap-20200103-0002/Third Party Advisory
https://www.tenable.com/security/tns-2021-14Third Party Advisory
https://bugs.php.net/bug.php?id=78862Exploit, Mailing List, Patch, Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N7GCOAE6KVHYJ3UQ4KLPLTGSLX6IRVRN/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWRQPYXVG43Q7DXMXH6UVWMKWGUW552F/
https://security.netapp.com/advisory/ntap-20200103-0002/Third Party Advisory
https://www.tenable.com/security/tns-2021-14Third Party Advisory

Timeline

Published: Dec 23, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-11044?

How severe is CVE-2019-11044?

CVE-2019-11044 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 5.12% probability of exploitation in the next 30 days.

How do I fix CVE-2019-11044?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-11044?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST