diff --git a/meta-oe/recipes-support/freerdp/freerdp3/CVE-2026-55564.patch b/meta-oe/recipes-support/freerdp/freerdp3/CVE-2026-55564.patch
new file mode 100644
index 0000000000..de3674b2c4
--- /dev/null
+++ b/meta-oe/recipes-support/freerdp/freerdp3/CVE-2026-55564.patch
@@ -0,0 +1,28 @@
+From 8e1a14795ee8c3aec32c2a9d5b2c6bf00793c92f Mon Sep 17 00:00:00 2001
+From: Armin Novak <armin.novak@thincast.com>
+Date: Sat, 13 Jun 2026 21:52:18 +0200
+Subject: [PATCH] [cache,glyph] tighten bounds checks
+
+(cherry picked from commit c29324750e3cbcba8761f147b7a5235cc686930f)
+
+CVE: CVE-2026-55564
+Upstream-Status: Backport [https://github.com/FreeRDP/FreeRDP/commit/c29324750e3cbcba8761f147b7a5235cc686930f]
+
+Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
+---
+ libfreerdp/cache/glyph.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/libfreerdp/cache/glyph.c b/libfreerdp/cache/glyph.c
+index 374c6151f..8a0d7f64c 100644
+--- a/libfreerdp/cache/glyph.c
++++ b/libfreerdp/cache/glyph.c
+@@ -565,7 +565,7 @@ rdpGlyph* glyph_cache_get(rdpGlyphCache* glyphCache, UINT32 id, UINT32 index)
+ 	}
+ 
+ 	GLYPH_CACHE* cache = &glyphCache->glyphCache[id];
+-	if (index > cache->number)
++	if (index >= cache->number)
+ 	{
+ 		WLog_ERR(TAG, "index %" PRIu32 " out of range for cache id: %" PRIu32 "", index, id);
+ 		return nullptr;
diff --git a/meta-oe/recipes-support/freerdp/freerdp3_3.24.2.bb b/meta-oe/recipes-support/freerdp/freerdp3_3.24.2.bb
index eefc9ab5d3..3e891f40d6 100644
--- a/meta-oe/recipes-support/freerdp/freerdp3_3.24.2.bb
+++ b/meta-oe/recipes-support/freerdp/freerdp3_3.24.2.bb
@@ -17,6 +17,7 @@ SRC_URI = "git://github.com/FreeRDP/FreeRDP.git;nobranch=1;protocol=https;tag=${
            file://CVE-2026-55192.patch \
            file://CVE-2026-55193.patch \
            file://CVE-2026-55194.patch \
+           file://CVE-2026-55564.patch \
 "