diff --git a/changelog/updates/2023-09-21-linux-firmware-20230919-update.md b/changelog/updates/2023-09-21-linux-firmware-20230919-update.md
new file mode 100644
index 00000000000..47dd5fa1964
--- /dev/null
+++ b/changelog/updates/2023-09-21-linux-firmware-20230919-update.md
@@ -0,0 +1 @@
+- Linux Firmware ([20230919](https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tag/?h=20230919))
diff --git a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-firmware/Manifest b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-firmware/Manifest
index ad51134b0ab..bde832bbd3b 100644
--- a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-firmware/Manifest
+++ b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-firmware/Manifest
@@ -1 +1 @@
-DIST linux-firmware-20230804.tar.xz 295170972 BLAKE2B 48eca78ab97ef5ac335dd2bfd043cf3e67c52c68cb8b3eb152725e04838a7662dafa9745add6fc786bf87d275809b51a07496fbdaf4607a89e2787388fe1d1cd SHA512 b7fdffd49530223394a0896608a746395cbe9d1a3ca7e4e744bc8381e937845e085f08e2b56854a233426164072f4c365b281db2f0dbb47192a97a94ada8fae6
+DIST linux-firmware-20230919.tar.xz 314110436 BLAKE2B 053142b7b534905e53b59149c20ff88ce52373dc56dd6d283ea8dc93a96891efe74a64b3a5e5b69f6e0fba90c20a03fe1a5d8450e73650201fbc26eeb52fa5e8 SHA512 e91dc432affd55f3b1337cd46eaf6c83054c3a700996e2324399ee160ec91fd0cdfcee3be35c4456c35f0b54d1d22d326d2f62d53b17d8bfa5495b7dcd73a332
diff --git a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-firmware/coreos-firmware-20230804.ebuild b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-firmware/coreos-firmware-20230919.ebuild
similarity index 100%
rename from sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-firmware/coreos-firmware-20230804.ebuild
rename to sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-firmware/coreos-firmware-20230919.ebuild
diff --git a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-firmware/coreos-firmware-99999999.ebuild b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-firmware/coreos-firmware-99999999.ebuild
index 284558bbf4e..e16c2239736 100644
--- a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-firmware/coreos-firmware-99999999.ebuild
+++ b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-firmware/coreos-firmware-99999999.ebuild
@@ -95,7 +95,7 @@ pkg_pretend() {
 }
 
 # Flatcar: create symlinks for cxgb and ice firmwares
-CXGB_VERSION="1.27.3.0"
+CXGB_VERSION="1.27.4.0"
 ICE_DDP_VERSION="1.3.30.0"
 
 src_unpack() {