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CVE-2024-2408

22
FAUCET Score

CVE-2024-2408 describes a vulnerability in the PHP openssl_private_decrypt function when using default PKCS1 padding, making it susceptible to the Marvin Attack. This primarily affects PHP installations that utilize OpenSSL versions predating the fix implemented in OpenSSL 3.2 or backported versions. The vulnerability has a medium severity rating (CVSS 5.9), indicating it can be exploited remotely with high attack complexity to achieve high confidentiality impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 8.1.0, < 8.1.29CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
>= 8.2.0, < 8.2.20CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
>= 8.3.0, < 8.3.8CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
40CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.9MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.16%
Probability of exploitation in next 30 days
EPSS Percentile
63.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0116 is in the 27th percentile among its peer group of 19,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (15)

microsoftpatch availablevia msrc
Product: azl3 php 8.3.6-1 on Azure Linux 3.0Fixed in: 8.3.8-1
microsoftpatch availablevia msrc
Product: 17355-17086Fixed in: 8.1.29-1
microsoftpatch availablevia msrc
Product: 17719-17084Fixed in: 8.3.8-1
microsoftpatch availablevia msrc
Product: 17752-17084Fixed in: 8.3.8-1
microsoftpatch availablevia msrc
Product: cbl2 php 8.1.29-1 on CBL Mariner 2.0Fixed in: 8.1.29-1
microsoftpatch availablevia msrc
Product: cbl2 php 8.1.28-1 on CBL Mariner 2.0Fixed in: 8.1.29-1
microsoftpatch availablevia msrc
Product: azl3 php 8.3.8-1 on Azure Linux 3.0Fixed in: 8.3.8-1
microsoftpatch availablevia msrc
Product: 17308-16823Fixed in: 8.1.29-1
microsoftpatch availablevia msrc
Product: 20015-17086Fixed in: 8.1.29-1
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: openssl-1:1.1.1k-12.el8_9
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: php:8.2/php
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: php:8.0/php
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: php
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: php:8.1/php
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: php:8.2/php

Vendor Advisories (2)

microsoft2024-Jun/CVE-2024-2408Moderate

PHP is vulnerable to the Marvin Attack

Jun 11, 2024
redhatCVE-2024-2408Moderate

php: potential exposure to Marvin attack via unsafe implementation of RSA decryption API

Jun 7, 2024

References

security.netapp.com / advisory/ntap-20250321-0008
github.com / php/php-src/security/advisories/GHSA-hh26-4ppw-5864
ExploitThird Party Advisory
lists.fedoraproject.org / archives/list/[email protected]/message/PKGTQUOA2NTZ3RXN22CSAUJPIRUYRB4B
Third Party Advisory
lists.fedoraproject.org / archives/list/[email protected]/message/W45DBOH56NQDRTOM2DN2LNA2FZIMC3PK