CVE-2026-45447
Heap Use-After-Free in the PKCS7_verify() Function
CVE-2026-45447 is fixed in 25 products on 1 platform, first by RHSA-2026:71542, released March 12, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
9.1
Important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0400
90th percentile
The OpenSSL toolkit provides support for secure communications between machines. This version of OpenSSL package contains only the libraries from the 1.1.1 version and is provided for compatibility with previous releases. Security Fix(es): * openssl: Heap Use-After-Free in OpenSSL PKCS7_verify() (CVE-2026-45447) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| compat-openssl10 · RHEL 8 | 1:1.0.2o-4.el8_10.3 | RHSA-2026:36215 | Jul 8, 2026 |
| compat-openssl10 · almalinux 8 | 1:1.0.2o-4.el8_10.3 | ALSA-2026:36215 | Jul 7, 2026 |
| compat-openssl10 · ol 8 | 1:1.0.2o-4.el8_10.3 | ELSA-2026-36215 | Jul 7, 2026 |
| compat-openssl10 · rocky 8 | 1:1.0.2o-4.el8_10.3 | RLSA-2026:36215 | Jul 13, 2026 |
| compat-openssl11 · RHEL 9 | 1:1.1.1k-5.el9_8.4 | RHSA-2026:44438 | Jul 24, 2026 |
| compat-openssl11 · almalinux 9 | 1:1.1.1k-5.el9_8.4 | ALSA-2026:44438 | Jul 23, 2026 |
| compat-openssl11 · ol 9 | 1:1.1.1k-5.el9_8.4 | ELSA-2026-44438 | Jul 23, 2026 |
| compat-openssl11 · rocky 9 | 1:1.1.1k-5.el9_8.4 | RLSA-2026:44438 | Jul 27, 2026 |
| libssl1.0.0 · Ubuntu 18.04.6 LTS (bionic) | 1.0.2n-1ubuntu5.13+esm5 | libssl1.0.0 1.0.2n-1ubuntu5.13+esm5 | Jun 24, 2026 |
| libssl1.1 · Ubuntu 18.04.6 LTS (bionic) | 1.1.1-1ubuntu2.1~18.04.23+esm9 | libssl1.1 1.1.1-1ubuntu2.1~18.04.23+esm9 | Jun 24, 2026 |
| libssl1.1 · Ubuntu 20.04 LTS (focal) | 1.1.1f-1ubuntu2.24+esm4 | libssl1.1 1.1.1f-1ubuntu2.24+esm4 | Jun 24, 2026 |
| libssl3 · Ubuntu 22.04.1 LTS (jammy) | 3.0.2-0ubuntu1.25 | libssl3 3.0.2-0ubuntu1.25 | Jun 24, 2026 |
| libssl3t64 · Ubuntu 24.04.5 LTS (noble) | 3.0.13-0ubuntu3.11 | libssl3t64 3.0.13-0ubuntu3.11 | Jun 24, 2026 |
| libssl3t64 · Ubuntu 25.10 (questing) | 3.5.3-1ubuntu3.4 | libssl3t64 3.5.3-1ubuntu3.4 | Jun 24, 2026 |
| libssl3t64 · Ubuntu 26.04.1 LTS (resolute) | 3.5.5-1ubuntu3.2 | libssl3t64 3.5.5-1ubuntu3.2 | Jun 8, 2026 |
| openssl · Debian 12.15 (bookworm) | 3.0.20-1~deb12u2 | DEBIAN-CVE-2026-45447 | Jun 24, 2026 |
| openssl · Debian 13.5 (trixie) | 3.5.6-1~deb13u2 | DEBIAN-CVE-2026-45447 | Jun 24, 2026 |
| openssl · Debian 14 | 3.6.3-1 | DEBIAN-CVE-2026-45447 | Jun 24, 2026 |
| openssl · RHEL 10 | 3.2.2-16.el10_0.7 | RHSA-2026:71542 | Mar 12, 2026 |
| openssl · RHEL 8 | 1:1.1.1k-16.el8_6 | RHSA-2026:26275 | Jun 24, 2026 |
| openssl · RHEL 9 | 1:3.5.5-4.el9_8 | RHSA-2026:25239 | Jun 24, 2026 |
| openssl · Ubuntu 18.04.6 LTS (bionic) | 1.1.1-1ubuntu2.1~18.04.23+esm9 | openssl 1.1.1-1ubuntu2.1~18.04.23+esm9 | Jun 24, 2026 |
| openssl · Ubuntu 20.04 LTS (focal) | 1.1.1f-1ubuntu2.24+esm4 | openssl 1.1.1f-1ubuntu2.24+esm4 | Jun 24, 2026 |
| openssl · Ubuntu 22.04.1 LTS (jammy) | 3.0.2-0ubuntu1.25 | openssl 3.0.2-0ubuntu1.25 | Jun 24, 2026 |
| openssl · Ubuntu 24.04.5 LTS (noble) | 3.0.13-0ubuntu3.11 | openssl 3.0.13-0ubuntu3.11 | Jun 24, 2026 |
| openssl · Ubuntu 25.10 (questing) | 3.5.3-1ubuntu3.4 | openssl 3.5.3-1ubuntu3.4 | Jun 24, 2026 |
| openssl · Ubuntu 26.04.1 LTS (resolute) | 3.5.5-1ubuntu3.2 | openssl 3.5.5-1ubuntu3.2 | Jun 8, 2026 |
| openssl · almalinux 10 | 1:3.5.5-4.el10_2.alma.1 | ALSA-2026:25237 | Jun 11, 2026 |
| openssl · almalinux 8 | 1:1.1.1k-16.el8_6 | ALSA-2026:26275 | Jun 16, 2026 |
| openssl · almalinux 9 | 1:3.5.5-4.el9_8 | ALSA-2026:25239 | Jun 11, 2026 |
| openssl · amzn 2023 | 1:3.5.5-1.amzn2023.0.5 | ALAS2023-2026-1853 | Jun 22, 2026 |
| openssl · ol 10 | 1:3.5.5-5.0.1.el10_2 | ELSA-2026-25237 | Jul 28, 2026 |
| openssl · ol 8 | 1:1.1.1k-16.el8_6 | ELSA-2026-26275 | Jun 16, 2026 |
| openssl · ol 9 | 1:3.5.5-4.0.1.el9_8 | ELSA-2026-25239 | Jun 23, 2026 |
| openssl · rocky 10 | 1:3.5.5-4.el10_2 | RLSA-2026:25237 | Jun 13, 2026 |
| openssl · rocky 8 | 1:1.1.1k-16.el8_10 | RLSA-2026:26275 | Jun 17, 2026 |
| openssl · rocky 9 | 1:3.5.5-4.el9_8 | RLSA-2026:25239 | Jun 13, 2026 |
| openssl-1_0_0 · sles 15.6 | 1.0.2p-150000.3.108.1 | SUSE-SU-2026:2399-1 | Jun 15, 2026 |
| openssl-1_0_0 · sles 15.7 | 1.0.2p-150000.3.108.1 | SUSE-SU-2026:2399-1 | Jun 15, 2026 |
| openssl-1_1 · sles 15.6 | 1.1.1w-150600.5.32.1 | SUSE-SU-2026:2404-1 | Jun 16, 2026 |
| openssl-1_1 · sles 15.7 | 1.1.1w-150700.11.22.1 | SUSE-SU-2026:2392-1 | Jun 15, 2026 |
| openssl-1_1-livepatches · sles 15.6 | 0.6-150600.11.6.1 | SUSE-SU-2026:2410-1 | Jun 16, 2026 |
| openssl-1_1-livepatches · sles 15.7 | 0.6-150700.13.6.1 | SUSE-SU-2026:2412-1 | Jun 16, 2026 |
| openssl-3 · opensuse-leap 16.0 | 3.5.0-160000.8.1 | OPENSUSE-SU-2026:21005-1 | Jun 22, 2026 |
| openssl-3 · sles 15.6 | 3.1.4-150600.5.53.1 | SUSE-SU-2026:2393-1 | Jun 15, 2026 |
| openssl-3 · sles 15.7 | 3.2.3-150700.5.36.1 | SUSE-SU-2026:2648-1 | Jun 26, 2026 |
| openssl-3 · sles 16.0 | 3.5.0-160000.8.1 | SUSE-SU-2026:22315-1 | Jun 22, 2026 |
| openssl-3-livepatches · sles 15.6 | 0.4-150600.13.11.1 | SUSE-SU-2026:2411-1 | Jun 16, 2026 |
| openssl-3-livepatches · sles 15.7 | 0.4-150700.16.6.1 | SUSE-SU-2026:2662-1 | Jun 26, 2026 |
| openssl-debuginfo · amzn 2023 | 1:3.5.5-1.amzn2023.0.5 | ALAS2023-2026-1853 | Jun 22, 2026 |
| openssl-debugsource · amzn 2023 | 1:3.5.5-1.amzn2023.0.5 | ALAS2023-2026-1853 | Jun 22, 2026 |
| openssl-devel · RHEL 8 | 1:1.1.1k-16.el8_6 | RHSA-2026:26275 | Jun 24, 2026 |
| openssl-devel · RHEL 9 | 1:3.5.5-4.el9_8 | RHSA-2026:25239 | Jun 24, 2026 |
| openssl-devel · almalinux 10 | 1:3.5.5-4.el10_2.alma.1 | ALSA-2026:25237 | Jun 11, 2026 |
| openssl-devel · almalinux 8 | 1:1.1.1k-16.el8_6 | ALSA-2026:26275 | Jun 16, 2026 |
| openssl-devel · almalinux 9 | 1:3.5.5-4.el9_8 | ALSA-2026:25239 | Jun 11, 2026 |
| openssl-devel · amzn 2023 | 1:3.5.5-1.amzn2023.0.5 | ALAS2023-2026-1853 | Jun 22, 2026 |
| openssl-devel · ol 10 | 1:3.5.5-5.0.1.el10_2 | ELSA-2026-25237 | Jul 28, 2026 |
| openssl-devel · ol 8 | 1:1.1.1k-16.el8_6 | ELSA-2026-26275 | Jun 16, 2026 |
| openssl-devel · ol 9 | 1:3.5.5-4.0.1.el9_8 | ELSA-2026-25239 | Jun 23, 2026 |
| openssl-fips-provider-latest · amzn 2023 | 1:3.5.5-1.amzn2023.0.5 | ALAS2023-2026-1853 | Jun 22, 2026 |
| openssl-fips-provider-latest-debuginfo · amzn 2023 | 1:3.5.5-1.amzn2023.0.5 | ALAS2023-2026-1853 | Jun 22, 2026 |
| openssl-libs · RHEL 8 | 1:1.1.1k-16.el8_6 | RHSA-2026:26275 | Jun 24, 2026 |
| openssl-libs · RHEL 9 | 1:3.5.5-4.el9_8 | RHSA-2026:25239 | Jun 24, 2026 |
| openssl-libs · almalinux 10 | 1:3.5.5-4.el10_2.alma.1 | ALSA-2026:25237 | Jun 11, 2026 |
| openssl-libs · almalinux 8 | 1:1.1.1k-16.el8_6 | ALSA-2026:26275 | Jun 16, 2026 |
| openssl-libs · almalinux 9 | 1:3.5.5-4.el9_8 | ALSA-2026:25239 | Jun 11, 2026 |
| openssl-libs · amzn 2023 | 1:3.5.5-1.amzn2023.0.5 | ALAS2023-2026-1853 | Jun 22, 2026 |
| openssl-libs · ol 10 | 1:3.5.5-5.0.1.el10_2 | ELSA-2026-25237 | Jul 28, 2026 |
| openssl-libs · ol 8 | 1:1.1.1k-16.el8_6 | ELSA-2026-26275 | Jun 16, 2026 |
| openssl-libs · ol 9 | 1:3.5.5-4.0.1.el9_8 | ELSA-2026-25239 | Jun 23, 2026 |
| openssl-libs-debuginfo · amzn 2023 | 1:3.5.5-1.amzn2023.0.5 | ALAS2023-2026-1853 | Jun 22, 2026 |
| openssl-perl · RHEL 8 | 1:1.1.1k-16.el8_6 | RHSA-2026:26275 | Jun 24, 2026 |
| openssl-perl · RHEL 9 | 1:3.5.5-4.el9_8 | RHSA-2026:25239 | Jun 24, 2026 |
| openssl-perl · almalinux 10 | 1:3.5.5-4.el10_2.alma.1 | ALSA-2026:25237 | Jun 11, 2026 |
| openssl-perl · almalinux 8 | 1:1.1.1k-16.el8_6 | ALSA-2026:26275 | Jun 16, 2026 |
| openssl-perl · almalinux 9 | 1:3.5.5-4.el9_8 | ALSA-2026:25239 | Jun 11, 2026 |
| openssl-perl · amzn 2023 | 1:3.5.5-1.amzn2023.0.5 | ALAS2023-2026-1853 | Jun 22, 2026 |
| openssl-perl · ol 10 | 1:3.5.5-5.0.1.el10_2 | ELSA-2026-25237 | Jul 28, 2026 |
| openssl-perl · ol 8 | 1:1.1.1k-16.el8_6 | ELSA-2026-26275 | Jun 16, 2026 |
| openssl-perl · ol 9 | 1:3.5.5-4.0.1.el9_8 | ELSA-2026-25239 | Jun 23, 2026 |
| openssl-provider-legacy · Ubuntu 25.10 (questing) | 3.5.3-1ubuntu3.4 | openssl-provider-legacy 3.5.3-1ubuntu3.4 | Jun 24, 2026 |
| openssl-provider-legacy · Ubuntu 26.04.1 LTS (resolute) | 3.5.5-1ubuntu3.2 | openssl-provider-legacy 3.5.5-1ubuntu3.2 | Jun 8, 2026 |
| openssl-snapsafe-libs · amzn 2023 | 1:3.5.5-1.amzn2023.0.5 | ALAS2023-2026-1853 | Jun 22, 2026 |
| openssl-snapsafe-libs-debuginfo · amzn 2023 | 1:3.5.5-1.amzn2023.0.5 | ALAS2023-2026-1853 | Jun 22, 2026 |
| openssl-static · ol 8 | 2:1.1.1k-16.ksplice1.el8_6 | ELSA-2026-50323 | Jun 18, 2026 |
| openssl1.0 · Ubuntu 18.04.6 LTS (bionic) | 1.0.2n-1ubuntu5.13+esm5 | openssl1.0 1.0.2n-1ubuntu5.13+esm5 | Jun 24, 2026 |
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