diff --git a/meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2026-65704.patch b/meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2026-65704.patch
new file mode 100644
index 0000000000..223fd03c33
--- /dev/null
+++ b/meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2026-65704.patch
@@ -0,0 +1,35 @@
+From e6f2209a3ab20ef0489395697a1882e97658b5b9 Mon Sep 17 00:00:00 2001
+From: Michael Niedermayer <michael@niedermayer.cc>
+Date: Fri, 10 Jul 2026 04:07:35 +0200
+Subject: [PATCH 6/9] avformat/ty: don't let the Series2 AC3 trim underflow the
+ packet size
+
+Fixes: negative-size-param
+Fixes: ty-s2-ac3-negative-size-single-file.ffconcat / create_poc.py
+Fixes: g0qeE6KvrjZi
+Found-by: Adrian Junge (vurlo)
+
+CVE: CVE-2026-65704
+Upstream-Status: Backport [https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/de771bd52774a52d45b0e2c82e56995a1ef40df7]
+
+Signed-off-by: Bhavesh R Maheshwari <bhavesh.maheshwari@einfochips.com>
+---
+ libavformat/ty.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/libavformat/ty.c b/libavformat/ty.c
+index 596e4cc..1f2b6f8 100644
+--- a/libavformat/ty.c
++++ b/libavformat/ty.c
+@@ -577,7 +577,7 @@ static int demux_audio(AVFormatContext *s, TyRecHdr *rec_hdr, AVPacket *pkt)
+         if (ty->audio_type == TIVO_AUDIO_AC3 &&
+                 ty->tivo_series == TIVO_SERIES2) {
+             if (ty->ac3_pkt_size + pkt->size > AC3_PKT_LENGTH) {
+-                pkt->size -= 2;
++                pkt->size -= FFMIN(pkt->size, 2);
+                 ty->ac3_pkt_size = 0;
+             } else {
+                 ty->ac3_pkt_size += pkt->size;
+-- 
+2.43.0
+
diff --git a/meta/recipes-multimedia/ffmpeg/ffmpeg_8.0.3.bb b/meta/recipes-multimedia/ffmpeg/ffmpeg_8.0.3.bb
index 7f0cdd4577..da96d63219 100644
--- a/meta/recipes-multimedia/ffmpeg/ffmpeg_8.0.3.bb
+++ b/meta/recipes-multimedia/ffmpeg/ffmpeg_8.0.3.bb
@@ -31,6 +31,7 @@ SRC_URI = "https://www.ffmpeg.org/releases/${BP}.tar.xz \
            file://CVE-2026-64834.patch \
            file://CVE-2026-64835.patch \
            file://CVE-2026-65703.patch \
+           file://CVE-2026-65704.patch \
            "
 
 SRC_URI[sha256sum] = "6136812ea6d4e68bdba27e33c2a94382711cdf4f8602ffef056ff792bd6f9818"