Security update for swtpm
A security update for swtpm addresses an out-of-bounds read vulnerability (CVE-2026-75900) caused by a mismatch between the size of a pointer and a structure in the SWTPM_NVRAM_CheckHeader function. This flaw could lead to memory safety issues. The vulnerability is classified as CWE-125 (Out-of-bounds Read) and affects multiple specific versions of swtpm. The severity is assessed as medium.
AI Analysis
Technical Summary
CVE-2026-75900 is an out-of-bounds read vulnerability in the swtpm component, specifically in the SWTPM_NVRAM_CheckHeader function. The issue arises due to a mismatch between sizeof(pointer) and sizeof(struct), leading to improper memory access. This vulnerability has been addressed in swtpm updates. Multiple versions, including various Ubuntu and SUSE package versions, are affected. No known exploits in the wild have been reported.
Potential Impact
The vulnerability allows out-of-bounds memory reads, which can cause application crashes or potentially leak sensitive information. There are no reports of active exploitation. The impact is limited to the affected swtpm versions and environments where this software is used.
Mitigation Recommendations
A security update for swtpm has been released to fix this vulnerability. Users should apply the official patches or update to fixed versions of swtpm to remediate the issue. Since this is not a cloud service, remediation depends on user action to update affected software versions.
Security update for swtpm
Description
A security update for swtpm addresses an out-of-bounds read vulnerability (CVE-2026-75900) caused by a mismatch between the size of a pointer and a structure in the SWTPM_NVRAM_CheckHeader function. This flaw could lead to memory safety issues. The vulnerability is classified as CWE-125 (Out-of-bounds Read) and affects multiple specific versions of swtpm. The severity is assessed as medium.
Affected software
pkg:deb/ubuntu/swtpm?arch=source&distro=jammypkg:deb/ubuntu/swtpm?arch=source&distro=noblepkg:deb/ubuntu/swtpm?arch=source&distro=resoluteRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-75900 is an out-of-bounds read vulnerability in the swtpm component, specifically in the SWTPM_NVRAM_CheckHeader function. The issue arises due to a mismatch between sizeof(pointer) and sizeof(struct), leading to improper memory access. This vulnerability has been addressed in swtpm updates. Multiple versions, including various Ubuntu and SUSE package versions, are affected. No known exploits in the wild have been reported.
Potential Impact
The vulnerability allows out-of-bounds memory reads, which can cause application crashes or potentially leak sensitive information. There are no reports of active exploitation. The impact is limited to the affected swtpm versions and environments where this software is used.
Mitigation Recommendations
A security update for swtpm has been released to fix this vulnerability. Users should apply the official patches or update to fixed versions of swtpm to remediate the issue. Since this is not a cloud service, remediation depends on user action to update affected software versions.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-gqrg-h59c-j4wj
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-75900"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a85b4a4acd9273b492507a3
Added to database: 08/19/2026, 13:50:28 UTC
Last enriched: 09/30/2026, 16:27:50 UTC
Last updated: 10/02/2026, 05:56:41 UTC
Views: 49
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