CVE-2023-3824

Name: CVE-2023-3824
Creator: NVD / NIST
Published: 2023-08-11T06:15:10.56+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 8.00%

Last modified Jun 17, 2026

CVE-2023-3824 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. In PHP version 8.0.* before 8.0.30, 8.1.* before 8.1.22, and 8.2.* before 8.2.8, when loading phar file, while reading PHAR directory entries, insufficient length checking may lead to a stack buffer overflow, leading potentially to memory corruption or RCE.. EPSS estimates a 8.00% chance of exploitation in the next 30 days.

Description

In PHP version 8.0.* before 8.0.30, 8.1.* before 8.1.22, and 8.2.* before 8.2.8, when loading phar file, while reading PHAR directory entries, insufficient length checking may lead to a stack buffer overflow, leading potentially to memory corruption or RCE.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

8.00%

94.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Php	Php	>= 8.0.0, < 8.0.30
Php	Php	>= 8.1.0, < 8.1.22
Php	Php	>= 8.2.0, < 8.2.9
Fedoraproject	Fedora	38
Debian	Debian Linux	10.0

References

https://github.com/php/php-src/security/advisories/GHSA-jqcx-ccgc-xwhvExploit, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/09/msg00002.htmlMailing List
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7NBF77WN6DTVTY2RE73IGPYD6M4PIAWA/Mailing List
https://security.netapp.com/advisory/ntap-20230825-0001/Third Party Advisory
https://github.com/php/php-src/security/advisories/GHSA-jqcx-ccgc-xwhvExploit, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/09/msg00002.htmlMailing List
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7NBF77WN6DTVTY2RE73IGPYD6M4PIAWA/Mailing List
https://security.netapp.com/advisory/ntap-20230825-0001/Third Party Advisory

Timeline

Published: Aug 11, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-3824?

How severe is CVE-2023-3824?

CVE-2023-3824 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 8.00% probability of exploitation in the next 30 days.

How do I fix CVE-2023-3824?

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-2023-3824?

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

Scan your code now

Source: NVD / NIST