CVE-2021-21702 is a null pointer dereference vulnerability affecting PHP versions 7.3.x, 7.4.x, and 8.0.x when using the SOAP extension. A malicious SOAP server can send malformed XML, causing PHP to crash. This vulnerability has a CVSS score of 7.5 (High), indicating a high availability impact with no confidentiality or integrity impact, and can be exploited remotely with low attack complexity. There is no evidence of active exploitation, nor are there public exploit modules like Metasploit or Nuclei, though it has received some community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 7.3.0, < 7.3.27CPE matchmatch criteria | cpe:2.3:a:php:php:*:*:*:*:*:*:*:* | ||
>= 7.4.0, < 7.4.15CPE matchmatch criteria | cpe:2.3:a:php:php:*:*:*:*:*:*:*:* | ||
>= 8.0.0, < 8.0.2CPE matchmatch criteria | cpe:2.3:a:php:php:*:*:*:*:*:*:*:* | ||
9.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | ||
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:L/PR:N/UI:N/S:U/C:N/I:N/A:L
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.