diff --git a/package/jasper/0004-Fixes-402-403.patch b/package/jasper/0004-Fixes-402-403.patch
new file mode 100644
index 0000000000..d7d777d9cd
--- /dev/null
+++ b/package/jasper/0004-Fixes-402-403.patch
@@ -0,0 +1,63 @@
+From 8308060d3fbc1da10353ac8a95c8ea60eba9c25a Mon Sep 17 00:00:00 2001
+From: Michael Adams <mdadams@ece.uvic.ca>
+Date: Tue, 5 Aug 2025 20:46:48 -0700
+Subject: [PATCH] Fixes #402, #403.
+
+JPEG-2000 (JPC) Decoder:
+- Added the setting of several pointers to null in some cleanup code
+  after the pointed-to memory was freed.  This pointer nulling is not
+  needed normally, but it is needed when certain debugging logs are
+  enabled (so that the debug code understands that the memory associated
+  with the aforementioned pointers has been freed).
+
+CVE: CVE-2025-8837
+Upstream: https://github.com/jasper-software/jasper/commit/8308060d3fbc1da10353ac8a95c8ea60eba9c25a
+[thomas: removed the binary blob, adapt line]
+Signed-off-by: Thomas Perale <thomas.perale@mind.be>
+---
+ src/libjasper/jpc/jpc_dec.c |  13 ++++++++-----
+ 3 files changed, 8 insertions(+), 5 deletions(-)
+
+diff --git a/src/libjasper/jpc/jpc_dec.c b/src/libjasper/jpc/jpc_dec.c
+index 125a29ba..7e44f052 100644
+--- a/src/libjasper/jpc/jpc_dec.c
++++ b/src/libjasper/jpc/jpc_dec.c
+@@ -1107,23 +1107,23 @@ static int jpc_dec_tilefini(jpc_dec_t *dec, jpc_dec_tile_t *tile)
+ 
+ 	if (tile->cp) {
+ 		jpc_dec_cp_destroy(tile->cp);
+-		//tile->cp = 0;
++		tile->cp = 0;
+ 	}
+ 	if (tile->tcomps) {
+ 		jas_free(tile->tcomps);
+-		//tile->tcomps = 0;
++		tile->tcomps = 0;
+ 	}
+ 	if (tile->pi) {
+ 		jpc_pi_destroy(tile->pi);
+-		//tile->pi = 0;
++		tile->pi = 0;
+ 	}
+ 	if (tile->pkthdrstream) {
+ 		jas_stream_close(tile->pkthdrstream);
+-		//tile->pkthdrstream = 0;
++		tile->pkthdrstream = 0;
+ 	}
+ 	if (tile->pptstab) {
+ 		jpc_ppxstab_destroy(tile->pptstab);
+-		//tile->pptstab = 0;
++		tile->pptstab = 0;
+ 	}
+ 
+ 	tile->state = JPC_TILE_DONE;
+@@ -2259,6 +2259,9 @@ static int jpc_dec_dump(const jpc_dec_t *dec)
+ 	const jpc_dec_tile_t *tile;
+ 	for (tileno = 0, tile = dec->tiles; tileno < dec->numtiles;
+ 	  ++tileno, ++tile) {
++		if (!tile->tcomps) {
++			continue;
++		}
+ 		assert(!dec->numcomps || tile->tcomps);
+ 		unsigned compno;
+ 		const jpc_dec_tcomp_t *tcomp;
diff --git a/package/jasper/jasper.mk b/package/jasper/jasper.mk
index d499c8a7c2..90c8e0c9a9 100644
--- a/package/jasper/jasper.mk
+++ b/package/jasper/jasper.mk
@@ -24,6 +24,9 @@ JASPER_IGNORE_CVES += CVE-2025-8835
 # 0003-Fixes-401.patch
 JASPER_IGNORE_CVES += CVE-2025-8836
 
+# 0004-Fixes-402-403.patch
+JASPER_IGNORE_CVES += CVE-2025-8837
+
 ifeq ($(BR2_STATIC_LIBS),y)
 JASPER_CONF_OPTS += -DJAS_ENABLE_SHARED=OFF
 endif