CVE-2019-11049 is a critical double-free vulnerability affecting PHP versions 7.3.x below 7.3.13 and 7.4.0 on Windows, specifically when custom, lowercase headers are supplied to the mail() function. This flaw, introduced by a specific commit, can lead to memory corruption. With a CVSS score of 9.8 (CRITICAL), it presents a high-impact, low-complexity attack vector (AV:N/AC:L) allowing for complete compromise of confidentiality, integrity, and availability (C:H/I:H/A:H). Despite its severity, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 7.3.0, <= 7.3.13CPE matchmatch criteria | cpe:2.3:a:php:php:*:*:*:*:*:*:*:* | ||
7.4.0CPE matchmatch criteria | cpe:2.3:a:php:php:7.4.0:*:*:*:*:*:*:* | ||
30CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* | ||
31CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* | ||
10.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.