added link to Adobe Security bulletin

Author: jfrontain

src/guides/v2.3/release-notes/2-3-7-p2.md

@@ -13,7 +13,7 @@ Quarterly releases may contain backward-incompatible changes (BIC). To review mi
 
 ## What's in this release?
 
-Six security fixes and several security enhancements are included in this security patch.  Security fixes are documented in the Adobe Security Bulletin.
+Six security fixes and several security enhancements are included in this security patch. Security fixes are documented in the [Adobe Security Bulletin](https://helpx.adobe.com/security/products/magento/apsb21-86.html).
 
 Security-only patches typically include all hotfixes that have been released for the preceding complete release. This release incorporates the two hotfixes that have been released for {{ site.data.var.ee }} 2.3.7-p1 and {{ site.data.var.ce }} 2.3.7-p1. See [Adobe Commerce 2.3.7-p1 Release Notes]({{page.baseurl}}/release-notes/2-3-7-p1.html) for information about these hotfixes.
 

src/guides/v2.4/release-notes/2-4-3-p1.md

@@ -10,7 +10,7 @@ Quarterly releases may contain backward-incompatible changes (BIC). To review mi
 
 ## What's in this release?
 
-Seven security fixes and several security enhancements are included in this security patch. Security fixes are documented in the Adobe Security Bulletin.
+Seven security fixes and several security enhancements are included in this security patch. Security fixes are documented in the [Adobe Security Bulletin](https://helpx.adobe.com/security/products/magento/apsb21-86.html).
 
 Security-only patches typically include all hotfixes that have been released for the preceding complete release. This release incorporates the two hot fixes that have been released for {{ site.data.var.ee }} 2.4.3 and {{ site.data.var.ce }} 2.4.3. See [Adobe Commerce 2.4.3 Release Notes]({{page.baseurl}}/release-notes/commerce-2-4-3.html) for information about these hotfixes.