CVE-2025-6857
published 2025-06-29CVE-2025-6857: A vulnerability has been found in HDF5 1.14.6 and classified as problematic. Affected by this vulnerability is the function H5G__node_cmp3 of the file…
PriorityP346high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.23%
14.0th percentile
A vulnerability has been found in HDF5 1.14.6 and classified as problematic. Affected by this vulnerability is the function H5G__node_cmp3 of the file src/H5Gnode.c. The manipulation leads to stack-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | hdf5 | — | — |
| hdfgroup | hdf5 | — | — |
| msrc | azl3_hdf5_1.14.4.3-1_on_azure_linux_3.0 | — | — |
| msrc | azl3_hdf5_1.14.6-1_on_azure_linux_3.0 | — | — |
| msrc | cbl2_hdf5_1.14.4-1_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_hdf5_1.14.6-1_on_cbl_mariner_2.0 | — | — |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv4.01.9LOWCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
nvdv2.01.7LOWAV:L/AC:L/Au:S/C:N/I:N/A:P
osv4.8MEDIUM
vendor_redhat5.5MEDIUM
vendor_debian4.8LOW
vendor_msrc3.3LOW
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
OSV
CVE-2025-6857: A vulnerability has been found in HDF5 1
osv·2025-06-29·CVSS 4.8
CVE-2025-6857 [MEDIUM] CVE-2025-6857: A vulnerability has been found in HDF5 1
A vulnerability has been found in HDF5 1.14.6 and classified as problematic. Affected by this vulnerability is the function H5G__node_cmp3 of the file src/H5Gnode.c. The manipulation leads to stack-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.
GHSA
GHSA-3475-c493-wg9p: A vulnerability has been found in HDF5 1
ghsa_unreviewed·2025-06-29
CVE-2025-6857 [MEDIUM] CWE-119 GHSA-3475-c493-wg9p: A vulnerability has been found in HDF5 1
A vulnerability has been found in HDF5 1.14.6 and classified as problematic. Affected by this vulnerability is the function H5G__node_cmp3 of the file src/H5Gnode.c. The manipulation leads to stack-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.
Red Hat
hdf5: HDF5 Stack Buffer Overflow
vendor_redhat·2025-06-29·CVSS 4.8
CVE-2025-6857 [MEDIUM] CWE-119 hdf5: HDF5 Stack Buffer Overflow
hdf5: HDF5 Stack Buffer Overflow
A vulnerability has been found in HDF5 1.14.6 and classified as problematic. Affected by this vulnerability is the function H5G__node_cmp3 of the file src/H5Gnode.c. The manipulation leads to stack-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.
A flaw was found in hdf5. The H5G__node_cmp3 function in src/H5Gnode.c contains a stack-based buffer overflow vulnerability that is triggered by manipulating data within a file. This flaw allows a local attacker to provide a specially crafted file. This issue can lead to a denial of service.
Mitigation: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Secu
Microsoft
HDF5 H5Gnode.c H5G__node_cmp3 stack-based overflow
vendor_msrc·2025-06-10·CVSS 3.3
CVE-2025-6857 [MEDIUM] CWE-121 HDF5 H5Gnode.c H5G__node_cmp3 stack-based overflow
HDF5 H5Gnode.c H5G__node_cmp3 stack-based overflow
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
VulDB: VulDB
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Reference: https://learn.micr
Debian
CVE-2025-6857: hdf5 - A vulnerability has been found in HDF5 1.14.6 and classified as problematic. Aff...
vendor_debian·2025·CVSS 4.8
CVE-2025-6857 [MEDIUM] CVE-2025-6857: hdf5 - A vulnerability has been found in HDF5 1.14.6 and classified as problematic. Aff...
A vulnerability has been found in HDF5 1.14.6 and classified as problematic. Affected by this vulnerability is the function H5G__node_cmp3 of the file src/H5Gnode.c. The manipulation leads to stack-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.
Scope: local
bookworm: open
bullseye: open
forky: open
sid: open
trixie: open
No detection rules found.
No public exploits indexed.
2025-06-29
Published