CVE-2026-33416 is a high-severity use-after-free vulnerability (CWE-416) affecting LIBPNG versions 1.2.1 through 1.6.55, where specific functions mishandle heap-allocated buffers, leading to dangling pointers and potential memory corruption. Rated 7.5 HIGH on CVSS, this vulnerability can be exploited over the network with high attack complexity, potentially leading to significant impacts on confidentiality, integrity, and availability. While there is no evidence of active exploitation, nor publicly available exploit code, the vulnerability has garnered community attention with 59 mentions and 2 media articles.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 1.2.1, < 1.6.56CPE matchmatch criteria | cpe:2.3:a:libpng:libpng:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.4 Bluesky, 0.2 Mastodon, and 0.1 GitHub mentions.
The average CVE in this peer group has 0.6 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.