diff --git a/crates/matrix-sdk-base/RUSTSEC-2025-0000.md b/crates/matrix-sdk-base/RUSTSEC-2025-0000.md
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+```toml
+[advisory]
+id = "RUSTSEC-2025-0000"
+package = "matrix-sdk-base"
+date = "2025-09-11"
+url = "https://github.com/matrix-org/matrix-rust-sdk/security/advisories/GHSA-qhj8-q5r6-8q6j"
+aliases = ["CVE-2025-59047", "GHSA-qhj8-q5r6-8q6j"]
+
+[affected.functions]
+"matrix_sdk_base::RoomMember::normalized_power_level" = ["<= 0.14.0"]
+
+[versions]
+patched = [">= 0.14.1"]
+```
+
+# matrix-sdk-base: Panic in the `RoomMember::normalized_power_level()` method 
+
+In matrix-sdk-base before 0.14.1, calling the
+`RoomMember::normalized_power_level()` method can cause a panic if a room member
+has a power level of `Int::Min`.