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openSUSE 15.5 OpenSSL Important Security Update 2026-2405-1

suse
Calendar Grey June 16, 2026
Dist Suse Esm H88
Critical security update for OpenSSL on SUSE addressing five significant issues. Update recommended for affected distributions.
An update that solves five vulnerabilities can now be installed.

Summary

## This update for openssl-1_1 fixes the following issues: * CVE-2026-45447: Heap Use-After-Free in OpenSSL PKCS7_verify() (bsc#1266357). * CVE-2026-42766: Possible NULL Dereference in Password-Based CMS Decryption (bsc#1266349). * CVE-2026-9076: Out-of-Bounds Read in CMS Password-Based Decryption (bsc#1266341). * CVE-2026-7383: Possible Heap Buffer Overflow in ASN.1 Multibyte String Conversion (bsc#1266340). * CVE-2026-34180: Heap Buffer Over-read in ASN.1 Content Parsing (bsc#1266342). ## 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: * openSUSE Leap 15.5 zypper in -t patch SUSE-2026-2405=1

Topics%20covered

Topics Covered

security advisory security issue buffer overflow SuSE OpenSSL important

References

* bsc#1266340

* bsc#1266341

* bsc#1266342

* bsc#1266349

* bsc#1266357

Cross-

* CVE-2026-34180

* CVE-2026-42766

* CVE-2026-45447

* CVE-2026-7383

* CVE-2026-9076

CVSS scores:

* CVE-2026-34180 ( SUSE ): 6.3

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

* CVE-2026-34180 ( SUSE ): 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

* CVE-2026-34180 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-42766 ( SUSE ): 6.8

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

* CVE-2026-42766 ( SUSE ): 5.7 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

* CVE-2026-42766 ( NVD ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-45447 ( SUSE ): 7.7

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

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2405-1
Release Date: 2026-06-16T06:54:18Z
Rating: important

Topics%20covered

Topics Covered

security advisory security issue buffer overflow SuSE OpenSSL important

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