diff --git a/pkg/agent/datamodel/sig_config.go b/pkg/agent/datamodel/sig_config.go
index b858a455db5..1148d32dd66 100644
--- a/pkg/agent/datamodel/sig_config.go
+++ b/pkg/agent/datamodel/sig_config.go
@@ -374,6 +374,9 @@ const (
 	//  of support and image builds have stopped.
 	FrozenCBLMarinerV1SIGImageVersionForDeprecation string = "202308.28.0"
 
+	// AzureLinuxV3 pinned to 202409.23.0 for testing.
+	FrozenAzureLinuxV3SIGImageVersion string = "202409.23.0"
+
 	// This is currently for testing only, we do not build 2404 images regularly
 	// Once 2404 is preview in AKS, we will refer to the images using regular LinuxSIGImageVersion and remove this.
 	Ubuntu2404SIGImageVersionForTest string = "202405.20.0"
@@ -630,7 +633,7 @@ var (
 		ResourceGroup: AKSAzureLinuxResourceGroup,
 		Gallery:       AKSAzureLinuxGalleryName,
 		Definition:    "V3",
-		Version:       LinuxSIGImageVersion,
+		Version:       FrozenAzureLinuxV3SIGImageVersion,
 	}
 
 	SIGCBLMarinerV2Gen2ImageConfigTemplate = SigImageConfigTemplate{
@@ -651,7 +654,7 @@ var (
 		ResourceGroup: AKSAzureLinuxResourceGroup,
 		Gallery:       AKSAzureLinuxGalleryName,
 		Definition:    "V3gen2",
-		Version:       LinuxSIGImageVersion,
+		Version:       FrozenAzureLinuxV3SIGImageVersion,
 	}
 
 	SIGCBLMarinerV2Gen1FIPSImageConfigTemplate = SigImageConfigTemplate{
@@ -672,7 +675,7 @@ var (
 		ResourceGroup: AKSAzureLinuxResourceGroup,
 		Gallery:       AKSAzureLinuxGalleryName,
 		Definition:    "V3fips",
-		Version:       LinuxSIGImageVersion,
+		Version:       FrozenAzureLinuxV3SIGImageVersion,
 	}
 
 	SIGCBLMarinerV2Gen2FIPSImageConfigTemplate = SigImageConfigTemplate{
@@ -693,7 +696,7 @@ var (
 		ResourceGroup: AKSAzureLinuxResourceGroup,
 		Gallery:       AKSAzureLinuxGalleryName,
 		Definition:    "V3gen2fips",
-		Version:       LinuxSIGImageVersion,
+		Version:       FrozenAzureLinuxV3SIGImageVersion,
 	}
 
 	SIGCBLMarinerV2KataImageConfigTemplate = SigImageConfigTemplate{
@@ -728,7 +731,7 @@ var (
 		ResourceGroup: AKSAzureLinuxResourceGroup,
 		Gallery:       AKSAzureLinuxGalleryName,
 		Definition:    "V3gen2arm64",
-		Version:       LinuxSIGImageVersion,
+		Version:       FrozenAzureLinuxV3SIGImageVersion,
 	}
 
 	SIGCBLMarinerV2TLImageConfigTemplate = SigImageConfigTemplate{
diff --git a/pkg/agent/datamodel/sig_config_test.go b/pkg/agent/datamodel/sig_config_test.go
index f6d00dcce04..3a0b2cb4d34 100644
--- a/pkg/agent/datamodel/sig_config_test.go
+++ b/pkg/agent/datamodel/sig_config_test.go
@@ -75,7 +75,7 @@ var _ = Describe("GetSIGAzureCloudSpecConfig", func() {
 		Expect(azurelinuxV3.ResourceGroup).To(Equal("resourcegroup"))
 		Expect(azurelinuxV3.Gallery).To(Equal("aksazurelinux"))
 		Expect(azurelinuxV3.Definition).To(Equal("V3"))
-		Expect(azurelinuxV3.Version).To(Equal(LinuxSIGImageVersion))
+		Expect(azurelinuxV3.Version).To(Equal(FrozenAzureLinuxV3SIGImageVersion))
 
 		azurelinuxV2Gen2 := sigConfig.SigAzureLinuxImageConfig[AKSAzureLinuxV2Gen2]
 		Expect(azurelinuxV2Gen2.ResourceGroup).To(Equal("resourcegroup"))
@@ -87,7 +87,7 @@ var _ = Describe("GetSIGAzureCloudSpecConfig", func() {
 		Expect(azurelinuxV3Gen2.ResourceGroup).To(Equal("resourcegroup"))
 		Expect(azurelinuxV3Gen2.Gallery).To(Equal("aksazurelinux"))
 		Expect(azurelinuxV3Gen2.Definition).To(Equal("V3gen2"))
-		Expect(azurelinuxV3Gen2.Version).To(Equal(LinuxSIGImageVersion))
+		Expect(azurelinuxV3Gen2.Version).To(Equal(FrozenAzureLinuxV3SIGImageVersion))
 
 		Expect(len(sigConfig.SigWindowsImageConfig)).To(Equal(6))
 
@@ -173,7 +173,7 @@ var _ = Describe("GetSIGAzureCloudSpecConfig", func() {
 		Expect(azurelinuxV3Arm64.ResourceGroup).To(Equal("resourcegroup"))
 		Expect(azurelinuxV3Arm64.Gallery).To(Equal("aksazurelinux"))
 		Expect(azurelinuxV3Arm64.Definition).To(Equal("V3gen2arm64"))
-		Expect(azurelinuxV3Arm64.Version).To(Equal(LinuxSIGImageVersion))
+		Expect(azurelinuxV3Arm64.Version).To(Equal(FrozenAzureLinuxV3SIGImageVersion))
 
 		aksUbuntu2204TLGen2Containerd := sigConfig.SigUbuntuImageConfig[AKSUbuntuContainerd2204TLGen2]
 		Expect(aksUbuntu2204TLGen2Containerd.ResourceGroup).To(Equal("resourcegroup"))
@@ -241,7 +241,7 @@ var _ = Describe("GetSIGAzureCloudSpecConfig", func() {
 		Expect(azurelinuxV3FIPS.ResourceGroup).To(Equal("resourcegroup"))
 		Expect(azurelinuxV3FIPS.Gallery).To(Equal("aksazurelinux"))
 		Expect(azurelinuxV3FIPS.Definition).To(Equal("V3fips"))
-		Expect(azurelinuxV3FIPS.Version).To(Equal(LinuxSIGImageVersion))
+		Expect(azurelinuxV3FIPS.Version).To(Equal(FrozenAzureLinuxV3SIGImageVersion))
 
 		marinerV2Gen2FIPS := sigConfig.SigCBLMarinerImageConfig[AKSCBLMarinerV2Gen2FIPS]
 		Expect(marinerV2Gen2FIPS.ResourceGroup).To(Equal("resourcegroup"))
@@ -259,7 +259,7 @@ var _ = Describe("GetSIGAzureCloudSpecConfig", func() {
 		Expect(azurelinuxV3Gen2FIPS.ResourceGroup).To(Equal("resourcegroup"))
 		Expect(azurelinuxV3Gen2FIPS.Gallery).To(Equal("aksazurelinux"))
 		Expect(azurelinuxV3Gen2FIPS.Definition).To(Equal("V3gen2fips"))
-		Expect(azurelinuxV3Gen2FIPS.Version).To(Equal(LinuxSIGImageVersion))
+		Expect(azurelinuxV3Gen2FIPS.Version).To(Equal(FrozenAzureLinuxV3SIGImageVersion))
 
 		azurelinuxV2Gen2Kata := sigConfig.SigAzureLinuxImageConfig[AKSAzureLinuxV2Gen2Kata]
 		Expect(azurelinuxV2Gen2Kata.ResourceGroup).To(Equal("resourcegroup"))