diff --git a/CHANGES.md b/CHANGES.md
index 8db1220fcf..183b216a1e 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -28,7 +28,21 @@ OpenSSL 3.3
 
 ### Changes between 3.3.2 and 3.3.3 [xx XXX xxxx]
 
- * none yet
+ * Fixed possible OOB memory access with invalid low-level GF(2^m) elliptic
+   curve parameters.
+
+   Use of the low-level GF(2^m) elliptic curve APIs with untrusted
+   explicit values for the field polynomial can lead to out-of-bounds memory
+   reads or writes.
+   Applications working with "exotic" explicit binary (GF(2^m)) curve
+   parameters, that make it possible to represent invalid field polynomials
+   with a zero constant term, via the above or similar APIs, may terminate
+   abruptly as a result of reading or writing outside of array bounds. Remote
+   code execution cannot easily be ruled out.
+
+   ([CVE-2024-9143])
+
+   *Viktor Dukhovni*
 
 ### Changes between 3.3.1 and 3.3.2 [3 Sep 2024]
 
@@ -20689,6 +20703,7 @@ ndif
 
 <!-- Links -->
 
+[CVE-2024-9143]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-9143
 [CVE-2024-6119]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-6119
 [CVE-2024-5535]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-5535
 [CVE-2024-4741]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-4741
diff --git a/NEWS.md b/NEWS.md
index 4d0303d9c5..49524a4e02 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -23,7 +23,14 @@ OpenSSL 3.3
 
 ### Major changes between OpenSSL 3.3.2 and OpenSSL 3.3.3 [under development]
 
-  * none
+OpenSSL 3.3.3 is a security patch release. The most severe CVE fixed in this
+release is Low.
+
+This release incorporates the following bug fixes and mitigations:
+
+  * Fixed possible OOB memory access with invalid low-level GF(2^m) elliptic
+    curve parameters.
+    ([CVE-2024-9143])
 
 ### Major changes between OpenSSL 3.3.1 and OpenSSL 3.3.2 [3 Sep 2024]
 
@@ -1746,6 +1753,7 @@ OpenSSL 0.9.x
 
 <!-- Links -->
 
+[CVE-2024-9143]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-9143
 [CVE-2024-6119]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-6119
 [CVE-2024-5535]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-5535
 [CVE-2024-4741]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-4741