CVE-2025-6816
published 2025-06-28CVE-2025-6816: A vulnerability classified as problematic was found in HDF5 1.14.6. This vulnerability affects the function H5O__fsinfo_encode of the file /src/H5Ofsinfo.c…
PriorityP414low3.3CVSS 3.1
AVLACLPRLUINSUCNINAL
EPSS
0.21%
11.0th percentile
A vulnerability classified as problematic was found in HDF5 1.14.6. This vulnerability affects the function H5O__fsinfo_encode of the file /src/H5Ofsinfo.c. The manipulation leads to heap-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
9 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 | azl3_xorg-x11-server_1.20.10-5_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 | — | — |
| msrc | cbl2_xorg-x11-server_1.20.10-10_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_xorg-x11-server_1.20.10-15_on_cbl_mariner_2.0 | — | — |
CVSS provenance
nvdv3.13.3LOWCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
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_msrc9.8CRITICAL
vendor_debian4.8LOW
vendor_redhat4.8MEDIUM
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Red Hat
hdf5: HDF5 Heap Buffer Overflow
vendor_redhat·2025-06-28·CVSS 4.8
CVE-2025-6816 [MEDIUM] CWE-119 hdf5: HDF5 Heap Buffer Overflow
hdf5: HDF5 Heap Buffer Overflow
A vulnerability classified as problematic was found in HDF5 1.14.6. This vulnerability affects the function H5O__fsinfo_encode of the file /src/H5Ofsinfo.c. The manipulation leads to heap-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 `H5O__fsinfo_encode` function in `H5Ofsinfo.c` contains a heap-based buffer overflow resulting from improper bounds checking during data encoding. This flaw allows a local attacker to trigger this overflow via a crafted file. The manipulation 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 Se
Microsoft
HDF5 H5Ofsinfo.c H5O__fsinfo_encode heap-based overflow
vendor_msrc·2025-06-10·CVSS 3.3
CVE-2025-6816 [MEDIUM] CWE-122 HDF5 H5Ofsinfo.c H5O__fsinfo_encode heap-based overflow
HDF5 H5Ofsinfo.c H5O__fsinfo_encode heap-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
Debian
CVE-2025-6816: hdf5 - A vulnerability classified as problematic was found in HDF5 1.14.6. This vulnera...
vendor_debian·2025·CVSS 4.8
CVE-2025-6816 [MEDIUM] CVE-2025-6816: hdf5 - A vulnerability classified as problematic was found in HDF5 1.14.6. This vulnera...
A vulnerability classified as problematic was found in HDF5 1.14.6. This vulnerability affects the function H5O__fsinfo_encode of the file /src/H5Ofsinfo.c. The manipulation leads to heap-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
Microsoft
Xorg-x11-server: heap buffer overflow in devicefocusevent and procxiquerypointer
vendor_msrc·2024-01-09·CVSS 9.8
CVE-2023-6816 [CRITICAL] CWE-787 Xorg-x11-server: heap buffer overflow in devicefocusevent and procxiquerypointer
Xorg-x11-server: heap buffer overflow in devicefocusevent and procxiquerypointer
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
redhat: redhat
Customer Action Required: Yes
Remediation: CBL-Mariner Release
GHSA
GHSA-x887-jv9q-xhvq: A vulnerability classified as problematic was found in HDF5 1
ghsa_unreviewed·2025-06-28
CVE-2025-6816 [MEDIUM] CWE-119 GHSA-x887-jv9q-xhvq: A vulnerability classified as problematic was found in HDF5 1
A vulnerability classified as problematic was found in HDF5 1.14.6. This vulnerability affects the function H5O__fsinfo_encode of the file /src/H5Ofsinfo.c. The manipulation leads to heap-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.
OSV
CVE-2025-6816: A vulnerability classified as problematic was found in HDF5 1
osv·2025-06-28·CVSS 4.8
CVE-2025-6816 [MEDIUM] CVE-2025-6816: A vulnerability classified as problematic was found in HDF5 1
A vulnerability classified as problematic was found in HDF5 1.14.6. This vulnerability affects the function H5O__fsinfo_encode of the file /src/H5Ofsinfo.c. The manipulation leads to heap-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.
No detection rules found.
No public exploits indexed.
2025-06-28
Published