ECHO-C437-171F-6A8A Heap buffer overflow in vp8 encoding in libvpx. Same as CVE-2026-2447 — Debian's firefox-esr uses the system libvpx, not the bundled copy. The system libvpx in trixie is already patched. https://security-tracker.debian.org/tracker/CVE-2023-5217
| Reporter | Title | Published | Views | Family All 645 |
|---|---|---|---|---|
 | electron{22,24,25} -- Heap buffer overflow in vp8 encoding in libvpx | 28 Sep 202300:00 | – | freebsd |
| chromium -- multiple vulnerabilities | 27 Sep 202300:00 | – | freebsd |
 | Exploit for Out-of-bounds Write in Webmproject Libvpx | 6 Oct 202305:46 | – | githubexploit |
| Exploit for Out-of-bounds Write in Webmproject Libvpx | 6 Oct 202305:46 | – | githubexploit |
 | CVE-2023-5217 | 28 Sep 202300:00 | – | attackerkb |
 | Alibaba Cloud Linux 3 : 0129: libvpx (ALINUX3-SA-2023:0129) | 14 May 202500:00 | – | nessus |
| AlmaLinux 8 : thunderbird (ALSA-2023:5428) | 10 Oct 202300:00 | – | nessus |
| AlmaLinux 8 : firefox (ALSA-2023:5433) | 10 Oct 202300:00 | – | nessus |
| AlmaLinux 9 : firefox (ALSA-2023:5434) | 6 Oct 202300:00 | – | nessus |
| AlmaLinux 9 : thunderbird (ALSA-2023:5435) | 6 Oct 202300:00 | – | nessus |
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15 Sep 2026 03:33Current
7.9High risk
Vulners AI Score7.9
CVSS 3.18.8
EPSS0.49013
SSVC