diff --git a/net-p2p/monero/Manifest b/net-p2p/monero/Manifest
index 331035cd55..8cdc906cbd 100644
--- a/net-p2p/monero/Manifest
+++ b/net-p2p/monero/Manifest
@@ -1,2 +1,4 @@
 DIST monero-0.18.5.0-release-hashes.txt 3041 BLAKE2B c21d6a5f3f42b83d08f65b96c233c8eb922e47e785c1682000ab2cb36f342c4510c98c30d5e831798f557b3919f4deb5a6ab75bc136443932af12d922b470ed7 SHA512 3f217e6cbc34a72a6f190c6a009393eb7f42c203e20cf03cbbedd1d0f150f65ad6f10565f0bb9dabd2097ed302fbe53a0bd5e8e9ebf05fd860cc2ab4102c387b
+DIST monero-0.18.5.1-release-hashes.txt 3041 BLAKE2B 01af2dcbfc6b2546192f3d7fa5fa69758f044992d272715f49307f957d7d0a07732723c624be6c49b8f3539293e3e3616b9032d996ec076f280498e0a5cf3169 SHA512 a36a723003affb158ba8cd4a306b0d110de0d53b676ef84911b6219f2bb7a8cdab1a33b5faed411339e053798ed088d93c3b365d1372f8d718bd939a272aa92c
 DIST monero-source-v0.18.5.0.tar.bz2 15639008 BLAKE2B 1de04747241ee066c596334ce3d81f2ac23b19e97f3a84057b54f80f4201eb2cff9264dad80694930bebbba3ae49044dd24be12e73aba3400ef8e5da500aeb46 SHA512 a453d6a935fad97ceb630b2ece2b6e39b7b48fcb33586b4d9b3c0861dddf67ba42c3ccd65b13886a76e4a91666b40f9a738bd8a9a644c12e211c9bd43672d310
+DIST monero-source-v0.18.5.1.tar.bz2 15650430 BLAKE2B 00304ac3af603bdebae6973c735286898a00af4a29d73d2d9662f70ddfc28ad40027e1d68a8d693ced582571cc00bc61862cfd53dc2d6b424abf89d271f4ba14 SHA512 d3c1e9536792baeda58e046e4622cb1c418535b3221db39fe35482f08fb88bd3570c4027bb29cdfbe01964d310fa7350179df1a3c117656eca05591d07ca1ba7
diff --git a/net-p2p/monero/monero-0.18.5.1.ebuild b/net-p2p/monero/monero-0.18.5.1.ebuild
new file mode 100644
index 0000000000..7337a26b18
--- /dev/null
+++ b/net-p2p/monero/monero-0.18.5.1.ebuild
@@ -0,0 +1,171 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DOCS_BUILDER=doxygen
+
+inherit cmake docs systemd verify-sig
+
+DESCRIPTION="The secure, private, untraceable cryptocurrency"
+HOMEPAGE="https://www.getmonero.org"
+
+LICENSE="BSD MIT"
+SLOT="0"
+IUSE="+daemon hw-wallet readline +tools +wallet-cli +wallet-rpc cpu_flags_x86_aes verify-sig"
+REQUIRED_USE="|| ( daemon tools wallet-cli wallet-rpc )"
+RESTRICT="test"
+
+SOURCE_NAME="${PN}-source-v${PV}"
+SOURCE_ARCHIVE="${SOURCE_NAME}.tar.bz2"
+
+if [[ ${PV} == 9999 ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/monero-project/monero.git"
+	EGIT_SUBMODULES=()
+else
+	VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/monero/binaryfate.asc
+	SRC_URI="
+		https://downloads.getmonero.org/cli/source/${SOURCE_ARCHIVE}
+		verify-sig? ( https://raw.githubusercontent.com/monero-project/monero-site/71456b9f871ead4e77db84d8fe5dc4109578af45/downloads/hashes.txt -> ${P}-release-hashes.txt )
+	"
+	# Todo: replace this hashes.txt URL with one based on ${P} (See https://github.com/monero-project/monero/issues/10760)
+	KEYWORDS="~amd64"
+fi
+
+# Test requires python's requests, psutil, deepdiff which are packaged
+# but also monotonic & zmq which we do not have
+
+DEPEND="
+	app-crypt/libmd
+	dev-libs/boost:=[nls]
+	dev-libs/libsodium:=
+	dev-libs/libbsd
+	dev-libs/openssl:=
+	dev-libs/randomx
+	dev-libs/rapidjson
+	dev-libs/supercop
+	net-dns/unbound:=[threads(+)]
+	net-libs/zeromq:=
+	daemon? (
+		acct-group/monero
+		acct-user/monero
+	)
+	readline? ( sys-libs/readline:= )
+	hw-wallet? (
+		dev-libs/hidapi
+		dev-libs/protobuf:=
+		virtual/libusb:1
+	)
+"
+RDEPEND="${DEPEND}"
+BDEPEND="
+	virtual/pkgconfig
+	verify-sig? ( sec-keys/openpgp-keys-monero )
+"
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-0.18.5.0-unbundle-dependencies.patch
+)
+
+src_unpack() {
+	if use verify-sig; then
+		pushd "${DISTDIR}" > /dev/null || die
+			verify-sig_verify_message "${DISTDIR}"/"${P}"-release-hashes.txt - | \
+				grep -F "${SOURCE_ARCHIVE}" | \
+				verify-sig_verify_unsigned_checksums - sha256 "${SOURCE_ARCHIVE}"
+		popd || die
+	fi
+	unpack "${SOURCE_ARCHIVE}" || die
+	mv "${SOURCE_NAME}" "${S}" || die
+	# The previous github source archive didn't have these external directories,
+	# I will just remove them here in case they interfere with dependency de-vendorization:
+	rm -r "${S}"/external/{randomx,rapidjson,supercop,trezor-common} || die
+}
+
+src_prepare() {
+	# The build system does not recognize the release tarball (bug?)
+	# so we patch the GitVersion file.
+	# Change the release string from "unknown" to "gentoo-${PR}"
+	sed -i "s/unknown/gentoo-${PR}/g" cmake/GitVersion.cmake || die
+	cmake_src_prepare
+}
+
+src_configure() {
+	local mycmakeargs=(
+		# TODO: Update CMake to install built libraries (help wanted)
+		-DBUILD_SHARED_LIBS=OFF
+		-DBUILD_DOCUMENTATION=OFF # easier to do it manually
+		-DMANUAL_SUBMODULES=ON
+		-DUSE_CCACHE=OFF
+		-DNO_AES=$(usex !cpu_flags_x86_aes)
+		-DUSE_DEVICE_TREZOR=$(usex hw-wallet)
+		-DUSE_READLINE=$(usex readline)
+	)
+
+	use elibc_musl && mycmakeargs+=( -DSTACK_TRACE=OFF )
+
+	cmake_src_configure
+}
+
+src_compile() {
+	local targets=(
+		$(usev daemon)
+		$(usev wallet-cli simplewallet)
+		$(usev wallet-rpc wallet_rpc_server)
+	)
+	use tools && targets+=(
+			blockchain_{ancestry,blackball,db,depth,export,import,prune,prune_known_spent_data,stats,usage}
+	)
+
+	cmake_build ${targets[@]}
+
+	docs_compile
+}
+
+src_install() {
+	einstalldocs
+
+	# Install all binaries.
+	find "${BUILD_DIR}/bin/" -type f -executable -print0 |
+		while IFS= read -r -d '' line; do
+			dobin "$line"
+		done
+
+	if use daemon; then
+		dodoc utils/conf/monerod.conf
+
+		# data-dir
+		keepdir /var/lib/monero
+		fowners monero:monero /var/lib/monero
+		fperms 0755 /var/lib/monero
+
+		# log-file dir
+		keepdir /var/log/monero
+		fowners monero:monero /var/log/monero
+		fperms 0755 /var/log/monero
+
+		# /etc/monero/monerod.conf
+		insinto /etc/monero
+		doins "${FILESDIR}"/monerod.conf
+
+		# OpenRC
+		newconfd "${FILESDIR}"/monerod-0.18.4.0.confd monerod
+		newinitd "${FILESDIR}"/monerod-0.18.4.0.initd monerod
+
+		# systemd
+		systemd_dounit "${FILESDIR}"/monerod.service
+	fi
+}
+
+pkg_postinst() {
+	if use daemon; then
+		elog "To get sync status and other stats run"
+		elog "   $ monerod status"
+		elog
+		elog "The Monero blockchain can take up a lot of space (250 GiB) and is stored"
+		elog "in /var/lib/monero by default. You may want to enable pruning by adding"
+		elog "'prune-blockchain=1' to /etc/monero/monerod.conf to prune the blockchain"
+		elog "or move the data directory to another disk."
+	fi
+}