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SUSE opensc Important Stack Buffer Overflow Security Advisory 2026-2678-1

suse
Calendar Grey June 29, 2026
Dist Suse Esm H88
Three important vulnerabilities in SUSE’s opensc are addressed by this security update. Install it now for protection!
An update that solves three vulnerabilities can now be installed.

Summary

## This update for opensc fixes the following issues * CVE-2025-49010: stack-buffer-overflow via crafted smart card or USB device responses (bsc#1261214). * CVE-2025-66215: crafted smart card or USB device can cause a stack-buffer- overflow write (bsc#1261220). * CVE-2026-10275: global buffer overflow during key pair generation tests due to missing input validation (bsc#1267246). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-2678=1 * SUSE Linux Enterprise Server 12 SP5 LTSS

Topics%20covered

Topics Covered

security advisory buffer overflow SuSE important stack overflow opensc

References

* bsc#1261214

* bsc#1261220

* bsc#1267246

Cross-

* CVE-2025-49010

* CVE-2025-66215

* CVE-2026-10275

CVSS scores:

* CVE-2025-49010 ( SUSE ): 1.0

CVSS:4.0/AV:P/AC:H/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

* CVE-2025-49010 ( SUSE ): 3.8 CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

* CVE-2025-49010 ( NVD ): 3.8 CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

* CVE-2025-49010 ( NVD ): 6.8 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-66215 ( SUSE ): 1.0

CVSS:4.0/AV:P/AC:H/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

* CVE-2025-66215 ( SUSE ): 3.8 CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

* CVE-2025-66215 ( NVD ): 3.8 CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

* CVE-2025-66215 ( NVD ): 6.8 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2678-1
Release Date: 2026-06-29T10:57:19Z
Rating: important

Topics%20covered

Topics Covered

security advisory buffer overflow SuSE important stack overflow opensc

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