CVE catalog
CVE-2026-75900
swtpm: CVE-2026-75900
- Severity
- Medium · CVSS 6.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.11% · Oct 25, 2026
An out-of-bounds read vulnerability was found in swtpm's SWTPM_NVRAM_CheckHeader() function. The entry guard checks the buffer length against sizeof(bh), where bh is a pointer, instead of sizeof(*bh), the actual struct size. This allows an undersized buffer to pass validation, causing a 2-byte heap overread on 64-bit systems (6 bytes on 32-bit) when accessing the totlen field. This may cause daemon termination on some platforms and leaks heap data to the log.
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 | swtpm | sid | 0.10.2-2 | fixed |
| Debian | swtpm | forky | 0.10.2-2 | fixed |
| Debian | swtpm | trixie | 0.7.1-1.5 | vulnerable |
| Debian | swtpm | bookworm | 0.7.1-1.3 | vulnerable |
| Suse | swtpm | linux micro 6.2 | 0.10.2-160000.1.1 | fixed |
| Suse | swtpm | linux micro 6.1 | 0.9.0-slfo.1.1_3.1 | fixed |
| Suse | swtpm | linux enterprise module for server applications 15 sp7 | 0.9.0-150700.3.3.1 | fixed |
| Suse | swtpm | linux micro 6.0 | 0.8.0-2.1 | fixed |
| Opensuse | swtpm | tumbleweed | 0.10.2-1.1 | fixed |
| Opensuse | swtpm | leap 16.0 | 0.10.2-160000.1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | swtpm | source | sid | 0.10.2-1 | not yet assigned | Not reported | [1144810] |
| Debian | swtpm | source | forky | 0.10.2-1 | not yet assigned | Not reported | [1144810] |
| Debian | swtpm | source | trixie | (unfixed) | not yet assigned | Not reported | [1144810] |
| Debian | swtpm | source | bookworm | (unfixed) | not yet assigned | Not reported | [1144810] |
| Suse | swtpm | rpm | linux micro 6.2 | 0.10.2-160000.1.1 | Not reported | SUSE-SU-2026:24114-1 | Not reported |
| Suse | swtpm | rpm | linux micro 6.1 | 0.9.0-slfo.1.1_3.1 | Not reported | SUSE-SU-2026:23927-1 | Not reported |
| Suse | swtpm | rpm | linux enterprise module for server applications 15 sp7 | 0.9.0-150700.3.3.1 | Not reported | SUSE-SU-2026:4366-1 | Not reported |
| Suse | swtpm | rpm | linux micro 6.0 | 0.8.0-2.1 | Not reported | SUSE-SU-2026:23879-1 | Not reported |
| Opensuse | swtpm | rpm | tumbleweed | 0.10.2-1.1 | Not reported | OPENSUSE-SU-2026:11598-1 | Not reported |
| Opensuse | swtpm | rpm | leap 16.0 | 0.10.2-160000.1.1 | Not reported | OPENSUSE-SU-2026:22048-1 | Not reported |
Notes
[trixie] swtpm: Minor issue [bookworm] swtpm: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [swtpm]Affected
Details (2)
0.7.1-1.3· amd64 · bookwormAffected
dsa · swtpm · debian · bookworm; dsa · swtpm · debian · 12
0.7.1-1.3· arm64 · bookwormAffected
dsa · swtpm · debian · bookworm; dsa · swtpm · debian · 12
- [swtpm-dev]Affected
Source package: [swtpm]
Details (2)
0.7.1-1.3· amd64 · bookwormAffected
dsa · swtpm · debian · bookworm; dsa · swtpm · debian · 12
0.7.1-1.3· arm64 · bookwormAffected
dsa · swtpm · debian · bookworm; dsa · swtpm · debian · 12
- [swtpm-libs]Affected
Source package: [swtpm]
Details (2)
0.7.1-1.3· amd64 · bookwormAffected
dsa · swtpm · debian · bookworm; dsa · swtpm · debian · 12
0.7.1-1.3· arm64 · bookwormAffected
dsa · swtpm · debian · bookworm; dsa · swtpm · debian · 12
- [swtpm-tools]Affected
Source package: [swtpm]
Details (2)
0.7.1-1.3· amd64 · bookwormAffected
dsa · swtpm · debian · bookworm; dsa · swtpm · debian · 12
0.7.1-1.3· arm64 · bookwormAffected
dsa · swtpm · debian · bookworm; dsa · swtpm · debian · 12
[Debian 13 (Trixie)]
- [swtpm]Affected
Details (2)
0.7.1-1.5· amd64 · trixieAffected
dsa · swtpm · debian · 13
0.7.1-1.5· arm64 · trixieAffected
dsa · swtpm · debian · 13
- [swtpm-dev]Affected
Source package: [swtpm]
Details (2)
0.7.1-1.5· amd64 · trixieAffected
dsa · swtpm · debian · 13
0.7.1-1.5· arm64 · trixieAffected
dsa · swtpm · debian · 13
- [swtpm-libs]Affected
Source package: [swtpm]
Details (2)
0.7.1-1.5· amd64 · trixieAffected
dsa · swtpm · debian · 13
0.7.1-1.5· arm64 · trixieAffected
dsa · swtpm · debian · 13
- [swtpm-tools]Affected
Source package: [swtpm]
Details (2)
0.7.1-1.5· amd64 · trixieAffected
dsa · swtpm · debian · 13
0.7.1-1.5· arm64 · trixieAffected
dsa · swtpm · debian · 13
[openSUSE Tumbleweed]
- [swtpm-devel]Unknown
Source package: [swtpm]
Details (1)
0.10.2-1.1· x86_64 · tumbleweedUnknown · Fixed:
0.10.2-1.1Version impact unknown
dsa · swtpm · opensuse · tumbleweed
- [swtpm-selinux]Unknown
Source package: [swtpm]
Details (1)
0.10.2-1.1· noarch · tumbleweedUnknown · Fixed:
0.10.2-1.1Version impact unknown
dsa · swtpm · opensuse · tumbleweed
- [swtpm]Fixed
Source package: [swtpm]
Details (1)
0.10.2-1.1· x86_64 · tumbleweedFixed · Fixed:
0.10.2-1.1dsa · swtpm · opensuse · tumbleweed
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_11598-1.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-75900]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-75900]
- [https://osv.dev/vulnerability/SUSE-SU-2026:23879-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:23927-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:24114-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:4366-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11598-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:22048-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-75900]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-75900.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]