CVE-2026-63072

🔐 CVE-2026-63072 — OpenSSL CMS Heap Buffer Overflow A technical analysis ofCVE-2026-63072 , a heap-based out-of-bounds write affecting OpenSSL's CMS key-unwrapping functionality. 📌 Overview CVE-2026-63072 is a heap-based buffer overflow vulnerability in OpenSSL's CMS Cryptographic Message Syntax...

openssl: heap buffer overflow in CMS key unwrapping

A flaw was found in OpenSSL. A crafted CMS Cryptographic Message Syntax message can cause an 8-byte out-of-bounds heap write when it is decrypted with CMSdecrypt. This issue occurs because the CMS decryption process incorrectly sizes the key-unwrap output buffer when using the AES-WRAP-PAD unwrap...

openssl: heap buffer overflow in CMS key unwrapping

A flaw was found in OpenSSL. A crafted CMS Cryptographic Message Syntax message can cause an 8-byte out-of-bounds heap write when it is decrypted with CMSdecrypt. This issue occurs because the CMS decryption process incorrectly sizes the key-unwrap output buffer when using the AES-WRAP-PAD unwrap...

openssl: heap buffer overflow in CMS key unwrapping

A flaw was found in OpenSSL. A crafted CMS Cryptographic Message Syntax message can cause an 8-byte out-of-bounds heap write when it is decrypted with CMSdecrypt. This issue occurs because the CMS decryption process incorrectly sizes the key-unwrap output buffer when using the AES-WRAP-PAD unwrap...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: php (UTSA-2026-146120)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-146120 advisory. In PHP versions 8.2. before 8.2.32, 8.3. before 8.3.32, 8.4. before 8.4.23, 8.5. before 8.5.8, the AES-WRAP-PAD algorithm implementation in OpenSSL extension contain...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: php (UTSA-2026-146121)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-146121 advisory. In PHP versions 8.2. before 8.2.32, 8.3. before 8.3.32, 8.4. before 8.4.23, 8.5. before 8.5.8, the AES-WRAP-PAD algorithm implementation in OpenSSL extension contain...

openssl: heap buffer overflow in CMS key unwrapping

A flaw was found in OpenSSL. A crafted CMS Cryptographic Message Syntax message can cause an 8-byte out-of-bounds heap write when it is decrypted with CMSdecrypt. This issue occurs because the CMS decryption process incorrectly sizes the key-unwrap output buffer when using the AES-WRAP-PAD unwrap...

openssl: heap buffer overflow in CMS key unwrapping

A flaw was found in OpenSSL. A crafted CMS Cryptographic Message Syntax message can cause an 8-byte out-of-bounds heap write when it is decrypted with CMSdecrypt. This issue occurs because the CMS decryption process incorrectly sizes the key-unwrap output buffer when using the AES-WRAP-PAD unwrap...

openssl: heap buffer overflow in CMS key unwrapping

A flaw was found in OpenSSL. A crafted CMS Cryptographic Message Syntax message can cause an 8-byte out-of-bounds heap write when it is decrypted with CMSdecrypt. This issue occurs because the CMS decryption process incorrectly sizes the key-unwrap output buffer when using the AES-WRAP-PAD unwrap...

CLEANSTART-2026-VK14120 Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based on querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive can write and cleanse more bytes than that q...

CVE-2026-63072 affects multiple packages. Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based on querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive can write and cleanse more bytes than that query reports, causing an 8-byte out-of-bounds heap write...

openssl: heap buffer overflow in CMS key unwrapping

A flaw was found in OpenSSL. A crafted CMS Cryptographic Message Syntax message can cause an 8-byte out-of-bounds heap write when it is decrypted with CMSdecrypt. This issue occurs because the CMS decryption process incorrectly sizes the key-unwrap output buffer when using the AES-WRAP-PAD unwrap...

openssl: heap buffer overflow in CMS key unwrapping

A flaw was found in OpenSSL. A crafted CMS Cryptographic Message Syntax message can cause an 8-byte out-of-bounds heap write when it is decrypted with CMSdecrypt. This issue occurs because the CMS decryption process incorrectly sizes the key-unwrap output buffer when using the AES-WRAP-PAD unwrap...

CLSA-2026-1792496065 compat-openssl11: Fix of CVE-2026-63072

CVE-2026-63072: fix heap buffer overflow in AES-WRAP-PAD unwrap...

openssl: heap buffer overflow in CMS key unwrapping

A flaw was found in OpenSSL. A crafted CMS Cryptographic Message Syntax message can cause an 8-byte out-of-bounds heap write when it is decrypted with CMSdecrypt. This issue occurs because the CMS decryption process incorrectly sizes the key-unwrap output buffer when using the AES-WRAP-PAD unwrap...

openssl: heap buffer overflow in CMS key unwrapping

A flaw was found in OpenSSL. A crafted CMS Cryptographic Message Syntax message can cause an 8-byte out-of-bounds heap write when it is decrypted with CMSdecrypt. This issue occurs because the CMS decryption process incorrectly sizes the key-unwrap output buffer when using the AES-WRAP-PAD unwrap...

Rocky Linux 9 [CIQ] Security Update: apcu-panel / php / php-bcmath / php-bcmath-debuginfo / php-cli / etc (crlsa-2026_48197)

The Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202648197 advisory. php: PHP OpenSSL extension: Denial of Service due to buffer allocation flaw in AES-WRAP-PAD CVE-2026-14355 Bug Fixes and Enhancements: Rebase PHP to 8.3.32 for...

Rocky Linux 8 [CIQ] Security Update: apcu-panel / libzip / libzip-debuginfo / libzip-debugsource / etc (crlsa-2026_47750)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202647750 advisory. php: PHP OpenSSL extension: Denial of Service due to buffer allocation flaw in AES-WRAP-PAD CVE-2026-14355 Bug Fixes and Enhancements: Backport fix for...

Rocky Linux 10.2 [CIQ] Security Update: php / php-bcmath / php-bcmath-debuginfo / php-cli / etc (crlsa-2026_48170)

The Rocky Linux 10.2 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202648170 advisory. php: PHP OpenSSL extension: Denial of Service due to buffer allocation flaw in AES-WRAP-PAD CVE-2026-14355 Bug Fixes and Enhancements: Rebase PHP to 8.3.32 for...

Rocky Linux 8 [CIQ] Security Update: apcu-panel / libzip / libzip-debuginfo / libzip-debugsource / etc (crlsa-2026_47749)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202647749 advisory. php: PHP OpenSSL extension: Denial of Service due to buffer allocation flaw in AES-WRAP-PAD CVE-2026-14355 Bug Fixes and Enhancements: Rebase PHP to 8.2.32 for...

Rocky Linux 9 [CIQ] Security Update: apcu-panel / php / php-bcmath / php-bcmath-debuginfo / php-cli / etc (crlsa-2026_40416)

The Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202640416 advisory. php: PHP OpenSSL extension: Denial of Service due to buffer allocation flaw in AES-WRAP-PAD CVE-2026-14355 Bug Fixes and Enhancements: Rebase PHP to 8.2.32 for...