diff --git a/meta-oe/recipes-support/hdf5/files/CVE-2026-17573.patch b/meta-oe/recipes-support/hdf5/files/CVE-2026-17573.patch
new file mode 100644
index 0000000000..3cfb52de42
--- /dev/null
+++ b/meta-oe/recipes-support/hdf5/files/CVE-2026-17573.patch
@@ -0,0 +1,53 @@
+From 856e7f1dd23e466ebeab5e454a5891b12e188f6a Mon Sep 17 00:00:00 2001
+From: jhendersonHDF <jhenderson@hdfgroup.org>
+Date: Tue, 27 Jan 2026 05:55:38 -0600
+Subject: [PATCH] Fix double-free issue in H5D__chunk_copy (#6160)
+
+Fix double-free caused by loss of buffer pointer after re-allocation
+
+Co-authored-by: Larry Knox <lrknox@hdfgroup.org>
+
+CVE: CVE-2026-17573
+Upstream-Status: Backport [https://github.com/HDFGroup/hdf5/commit/dd3080a58cc6bb86f3b34284399915da9e513262]
+
+Dropped changes to the CHANGELOG file.
+
+Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
+---
+ src/H5Dchunk.c | 5 ++---
+ 1 file changed, 2 insertions(+), 3 deletions(-)
+
+diff --git a/src/H5Dchunk.c b/src/H5Dchunk.c
+index f2a0e85c03..5ff537ebde 100644
+--- a/src/H5Dchunk.c
++++ b/src/H5Dchunk.c
+@@ -7034,7 +7034,7 @@ H5D__chunk_copy(H5F_t *f_src, H5O_layout_t *layout_src, H5F_t *f_dst, H5O_layout
+                 const H5S_extent_t *ds_extent_src, H5T_t *dt_src, const H5O_pline_t *pline_src,
+                 H5O_copy_t *cpy_info)
+ {
+-    H5D_chunk_it_ud3_t udata;                       /* User data for iteration callback */
++    H5D_chunk_it_ud3_t udata = {0};                 /* User data for iteration callback */
+     H5D_chk_idx_info_t idx_info_dst;                /* Dest. chunked index info */
+     H5D_chk_idx_info_t idx_info_src;                /* Source chunked index info */
+     int                sndims;                      /* Rank of dataspace */
+@@ -7202,7 +7202,6 @@ H5D__chunk_copy(H5F_t *f_src, H5O_layout_t *layout_src, H5F_t *f_dst, H5O_layout
+         HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for raw data chunk");
+ 
+     /* Initialize the callback structure for the source */
+-    memset(&udata, 0, sizeof udata);
+     udata.common.layout    = &layout_src->u.chunk;
+     udata.common.storage   = &layout_src->storage.u.chunk;
+     udata.file_src         = f_src;
+@@ -7253,11 +7252,11 @@ H5D__chunk_copy(H5F_t *f_src, H5O_layout_t *layout_src, H5F_t *f_dst, H5O_layout
+         } /* end for */
+     }
+ 
++done:
+     /* I/O buffers may have been re-allocated */
+     buf = udata.buf;
+     bkg = udata.bkg;
+ 
+-done:
+     if (dt_dst && (H5T_close(dt_dst) < 0))
+         HDONE_ERROR(H5E_DATASET, H5E_CANTCLOSEOBJ, FAIL, "can't close temporary datatype");
+     if (dt_mem && (H5T_close(dt_mem) < 0))
diff --git a/meta-oe/recipes-support/hdf5/hdf5_2.0.0.bb b/meta-oe/recipes-support/hdf5/hdf5_2.0.0.bb
index cd489bdc3f..c49d5819be 100644
--- a/meta-oe/recipes-support/hdf5/hdf5_2.0.0.bb
+++ b/meta-oe/recipes-support/hdf5/hdf5_2.0.0.bb
@@ -19,6 +19,7 @@ SRC_URI = "https://support.hdfgroup.org/releases/hdf5/v2_0/v2_0_0/downloads/${BP
            file://CVE-2026-26199.patch \
            file://CVE-2026-26197.patch \
            file://CVE-2026-17572.patch \
+           file://CVE-2026-17573.patch \
            "
 SRC_URI[sha256sum] = "f4c2edc5668fb846627182708dbe1e16c60c467e63177a75b0b9f12c19d7efed"