CVE catalog
CVE-2026-86095
Unidata netcdf-c through 4.10.1 contains an out-of-bounds write vulnerability in NC4_HDF5_inq_attname() that copies HDF5 attribute names into a fixed 256-byte buffer without length validation. Attacke
- Severity
- High · CVSS 8.5
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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 - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.18% · Oct 25, 2026
Unidata netcdf-c through 4.10.1 contains an out-of-bounds write vulnerability in NC4_HDF5_inq_attname() that copies HDF5 attribute names into a fixed 256-byte buffer without length validation. Attackers can craft HDF5 files with oversized attribute names to overflow the destination buffer, causing memory corruption and crashes when applications enumerate attribute names.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | netcdf | sid | 1:4.10.1-1 | vulnerable |
| Debian | netcdf | forky | 1:4.10.1-1 | vulnerable |
| Debian | netcdf | trixie | 1:4.9.3-1 | vulnerable |
| Debian | netcdf | bookworm | 1:4.9.0-3 | vulnerable |
| Debian | netcdf-parallel | sid | 1:4.10.1-2 | vulnerable |
| Debian | netcdf-parallel | forky | 1:4.10.1-2 | vulnerable |
| Debian | netcdf-parallel | trixie | 1:4.9.3-2 | vulnerable |
| Debian | netcdf-parallel | bookworm | 1:4.9.0-1 | vulnerable |
| Suse | netcdf | linux enterprise module for package hub 15 sp7 | 4.7.4-150600.15.5.1 | fixed |
| Suse | netcdf-openmpi2 | linux enterprise module for package hub 15 sp7 | 4.7.4-150600.15.5.1 | fixed |
| Suse | netcdf-openmpi3 | linux enterprise module for package hub 15 sp7 | 4.7.4-150600.15.5.1 | fixed |
| Suse | netcdf-openmpi4 | linux enterprise module for package hub 15 sp7 | 4.7.4-150600.15.5.1 | fixed |
| Suse | netcdf_4_7_4-gnu-hpc | linux enterprise module for package hub 15 sp7 | 4.7.4-150600.15.5.1 | fixed |
| Suse | netcdf_4_7_4-gnu-mpich-hpc | linux enterprise module for package hub 15 sp7 | 4.7.4-150600.15.5.1 | fixed |
| Suse | netcdf_4_7_4-gnu-mvapich2-hpc | linux enterprise module for package hub 15 sp7 | 4.7.4-150600.15.5.1 | fixed |
| Suse | netcdf_4_7_4-gnu-openmpi2-hpc | linux enterprise module for package hub 15 sp7 | 4.7.4-150600.15.5.1 | fixed |
| Suse | netcdf_4_7_4-gnu-openmpi3-hpc | linux enterprise module for package hub 15 sp7 | 4.7.4-150600.15.5.1 | fixed |
| Suse | netcdf_4_7_4-gnu-openmpi4-hpc | linux enterprise module for package hub 15 sp7 | 4.7.4-150600.15.5.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | netcdf | source | sid | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | netcdf | source | forky | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | netcdf | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | netcdf | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | netcdf-parallel | source | sid | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | netcdf-parallel | source | forky | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | netcdf-parallel | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | netcdf-parallel | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Suse | netcdf | rpm | linux enterprise module for package hub 15 sp7 | 4.7.4-150600.15.5.1 | Not reported | SUSE-SU-2026:4249-1 | Not reported |
| Suse | netcdf-openmpi2 | rpm | linux enterprise module for package hub 15 sp7 | 4.7.4-150600.15.5.1 | Not reported | SUSE-SU-2026:4249-1 | Not reported |
| Suse | netcdf-openmpi3 | rpm | linux enterprise module for package hub 15 sp7 | 4.7.4-150600.15.5.1 | Not reported | SUSE-SU-2026:4249-1 | Not reported |
| Suse | netcdf-openmpi4 | rpm | linux enterprise module for package hub 15 sp7 | 4.7.4-150600.15.5.1 | Not reported | SUSE-SU-2026:4249-1 | Not reported |
| Suse | netcdf_4_7_4-gnu-hpc | rpm | linux enterprise module for package hub 15 sp7 | 4.7.4-150600.15.5.1 | Not reported | SUSE-SU-2026:4249-1 | Not reported |
| Suse | netcdf_4_7_4-gnu-mpich-hpc | rpm | linux enterprise module for package hub 15 sp7 | 4.7.4-150600.15.5.1 | Not reported | SUSE-SU-2026:4249-1 | Not reported |
| Suse | netcdf_4_7_4-gnu-mvapich2-hpc | rpm | linux enterprise module for package hub 15 sp7 | 4.7.4-150600.15.5.1 | Not reported | SUSE-SU-2026:4249-1 | Not reported |
| Suse | netcdf_4_7_4-gnu-openmpi2-hpc | rpm | linux enterprise module for package hub 15 sp7 | 4.7.4-150600.15.5.1 | Not reported | SUSE-SU-2026:4249-1 | Not reported |
| Suse | netcdf_4_7_4-gnu-openmpi3-hpc | rpm | linux enterprise module for package hub 15 sp7 | 4.7.4-150600.15.5.1 | Not reported | SUSE-SU-2026:4249-1 | Not reported |
| Suse | netcdf_4_7_4-gnu-openmpi4-hpc | rpm | linux enterprise module for package hub 15 sp7 | 4.7.4-150600.15.5.1 | Not reported | SUSE-SU-2026:4249-1 | Not reported |
Notes
[trixie] netcdf: Minor issue [trixie] netcdf-parallel: Minor issue [bookworm] netcdf-parallel: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libnetcdf19]Affected
Source package: [netcdf]
Details (2)
1:4.9.0-3+b1· amd64 · bookwormAffected
nvd · netcdf · debian · bookworm; nvd · netcdf · debian · 12
1:4.9.0-3+b1· arm64 · bookwormAffected
nvd · netcdf · debian · bookworm; nvd · netcdf · debian · 12
- [libnetcdf-dev]Affected
Source package: [netcdf]
Details (2)
1:4.9.0-3+b1· amd64 · bookwormAffected
nvd · netcdf · debian · bookworm; nvd · netcdf · debian · 12
1:4.9.0-3+b1· arm64 · bookwormAffected
nvd · netcdf · debian · bookworm; nvd · netcdf · debian · 12
- [libnetcdf-mpi-19]Affected
Source package: [netcdf-parallel]
Details (2)
1:4.9.0-1+b1· amd64 · bookwormAffected
nvd · netcdf-parallel · debian · bookworm; nvd · netcdf-parallel · debian · 12
1:4.9.0-1+b1· arm64 · bookwormAffected
nvd · netcdf-parallel · debian · bookworm; nvd · netcdf-parallel · debian · 12
- [libnetcdf-mpi-dev]Affected
Source package: [netcdf-parallel]
Details (2)
1:4.9.0-1+b1· amd64 · bookwormAffected
nvd · netcdf-parallel · debian · bookworm; nvd · netcdf-parallel · debian · 12
1:4.9.0-1+b1· arm64 · bookwormAffected
nvd · netcdf-parallel · debian · bookworm; nvd · netcdf-parallel · debian · 12
- [libnetcdf-pnetcdf-19]Affected
Source package: [netcdf-parallel]
Details (2)
1:4.9.0-1+b1· amd64 · bookwormAffected
nvd · netcdf-parallel · debian · bookworm; nvd · netcdf-parallel · debian · 12
1:4.9.0-1+b1· arm64 · bookwormAffected
nvd · netcdf-parallel · debian · bookworm; nvd · netcdf-parallel · debian · 12
- [libnetcdf-pnetcdf-dev]Affected
Source package: [netcdf-parallel]
Details (2)
1:4.9.0-1+b1· amd64 · bookwormAffected
nvd · netcdf-parallel · debian · bookworm; nvd · netcdf-parallel · debian · 12
1:4.9.0-1+b1· arm64 · bookwormAffected
nvd · netcdf-parallel · debian · bookworm; nvd · netcdf-parallel · debian · 12
- [netcdf-bin]Affected
Source package: [netcdf]
Details (2)
1:4.9.0-3+b1· amd64 · bookwormAffected
nvd · netcdf · debian · bookworm; nvd · netcdf · debian · 12
1:4.9.0-3+b1· arm64 · bookwormAffected
nvd · netcdf · debian · bookworm; nvd · netcdf · debian · 12
- [netcdf-doc]Affected
Source package: [netcdf]
Details (2)
1:4.9.0-3· all · bookwormAffected
nvd · netcdf · debian · bookworm; nvd · netcdf · debian · 12
1:4.9.0-3· all · bookwormAffected
nvd · netcdf · debian · bookworm; nvd · netcdf · debian · 12
[Debian 13 (Trixie)]
- [libnetcdf22]Affected
Source package: [netcdf]
Details (2)
1:4.9.3-1· amd64 · trixieAffected
nvd · netcdf · debian · 13
1:4.9.3-1· arm64 · trixieAffected
nvd · netcdf · debian · 13
- [libnetcdf-dev]Affected
Source package: [netcdf]
Details (2)
1:4.9.3-1· amd64 · trixieAffected
nvd · netcdf · debian · 13
1:4.9.3-1· arm64 · trixieAffected
nvd · netcdf · debian · 13
- [libnetcdf-mpi-22]Affected
Source package: [netcdf-parallel]
Details (2)
1:4.9.3-2· amd64 · trixieAffected
nvd · netcdf-parallel · debian · 13
1:4.9.3-2· arm64 · trixieAffected
nvd · netcdf-parallel · debian · 13
- [libnetcdf-mpi-dev]Affected
Source package: [netcdf-parallel]
Details (2)
1:4.9.3-2· amd64 · trixieAffected
nvd · netcdf-parallel · debian · 13
1:4.9.3-2· arm64 · trixieAffected
nvd · netcdf-parallel · debian · 13
- [libnetcdf-pnetcdf-22]Affected
Source package: [netcdf-parallel]
Details (2)
1:4.9.3-2· amd64 · trixieAffected
nvd · netcdf-parallel · debian · 13
1:4.9.3-2· arm64 · trixieAffected
nvd · netcdf-parallel · debian · 13
- [libnetcdf-pnetcdf-dev]Affected
Source package: [netcdf-parallel]
Details (2)
1:4.9.3-2· amd64 · trixieAffected
nvd · netcdf-parallel · debian · 13
1:4.9.3-2· arm64 · trixieAffected
nvd · netcdf-parallel · debian · 13
- [netcdf-bin]Affected
Source package: [netcdf]
Details (2)
1:4.9.3-1· amd64 · trixieAffected
nvd · netcdf · debian · 13
1:4.9.3-1· arm64 · trixieAffected
nvd · netcdf · debian · 13
- [netcdf-doc]Affected
Source package: [netcdf]
Details (2)
1:4.9.3-1· all · trixieAffected
nvd · netcdf · debian · 13
1:4.9.3-1· all · trixieAffected
nvd · netcdf · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2026_4249-1.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-86095]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-86095]
- [https://osv.dev/vulnerability/SUSE-SU-2026:4249-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-86095]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-86095.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]