CVE-2021-29462 is a critical vulnerability affecting the Portable SDK for UPnP Devices (pupnp_project pupnp), specifically its server component (libupnp). This flaw allows for DNS rebinding attacks due to the server's failure to validate the Host header. With a CVSS score of 9.8 (CRITICAL), it presents a severe risk with network-based attacks requiring low complexity and no user interaction, potentially leading to complete compromise of confidentiality, integrity, and availability. While no active exploitation, public exploit code, or significant community discussion has been observed, organizations using affected versions (prior to 1.14.6) should prioritize patching or implement DNS resolvers that block rebinding attacks.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.14.6CPE matchmatch criteria | cpe:2.3:a:pupnp_project:pupnp:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L
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.
Remediation records are not available for this CVE.