An update for unbound is now available for openEuler-22.03-LTS-SP3,openEuler-22.03-LTS-SP4,openEuler-24.03-LTS,openEuler-24.03-LTS-SP1,openEuler-24.03-LTS-SP2,openEuler-20.03-LTS-SP4 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2025-1974 Final 1.0 1.0 2025-08-08 Initial 2025-08-08 2025-08-08 openEuler SA Tool V1.0 2025-08-08 unbound security update An update for unbound is now available for openEuler-22.03-LTS-SP3,openEuler-22.03-LTS-SP4,openEuler-24.03-LTS,openEuler-24.03-LTS-SP1,openEuler-24.03-LTS-SP2,openEuler-20.03-LTS-SP4 Unbound is a validating, recursive, caching DNS resolver. It is designed to be fast and lean and incorporates modern features based on open standards. To help increase online privacy, Unbound supports DNS-over-TLS which allows clients to encrypt their communication. Unbound is available for most platforms such as FreeBSD, OpenBSD, NetBSD, MacOS, Linux and Microsoft Windows. Unbound is a totally free, open source software under the BSD license. It doesn't make custom builds or provide specific features to paying customers only. Security Fix(es): NLnet Unbound is an open source DNS server for the Netherlands NLnet team. NLnet Unbound has a security vulnerability that originates from the risk of cache poisoning when supporting EDNS Client Subnet, which may lead to Rebirthday attacks.(CVE-2025-5994) An update for unbound is now available for openEuler-22.03-LTS-SP3,openEuler-22.03-LTS-SP4,openEuler-24.03-LTS,openEuler-24.03-LTS-SP1,openEuler-24.03-LTS-SP2,openEuler-20.03-LTS-SP4. openEuler Security has rated this update as having a security impact of high. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. High unbound https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1974 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2025-5994 https://nvd.nist.gov/vuln/detail/CVE-2025-5994 openEuler-22.03-LTS-SP3 openEuler-22.03-LTS-SP4 openEuler-24.03-LTS openEuler-24.03-LTS-SP1 openEuler-24.03-LTS-SP2 openEuler-20.03-LTS-SP4 python3-unbound-1.13.2-18.oe2203sp3.aarch64.rpm unbound-1.13.2-18.oe2203sp3.aarch64.rpm unbound-anchor-1.13.2-18.oe2203sp3.aarch64.rpm unbound-debuginfo-1.13.2-18.oe2203sp3.aarch64.rpm unbound-debugsource-1.13.2-18.oe2203sp3.aarch64.rpm unbound-devel-1.13.2-18.oe2203sp3.aarch64.rpm unbound-help-1.13.2-18.oe2203sp3.aarch64.rpm unbound-libs-1.13.2-18.oe2203sp3.aarch64.rpm python3-unbound-1.13.2-18.oe2203sp4.aarch64.rpm unbound-1.13.2-18.oe2203sp4.aarch64.rpm unbound-anchor-1.13.2-18.oe2203sp4.aarch64.rpm unbound-debuginfo-1.13.2-18.oe2203sp4.aarch64.rpm unbound-debugsource-1.13.2-18.oe2203sp4.aarch64.rpm unbound-devel-1.13.2-18.oe2203sp4.aarch64.rpm unbound-help-1.13.2-18.oe2203sp4.aarch64.rpm unbound-libs-1.13.2-18.oe2203sp4.aarch64.rpm python3-unbound-1.17.1-12.oe2403.aarch64.rpm unbound-1.17.1-12.oe2403.aarch64.rpm unbound-anchor-1.17.1-12.oe2403.aarch64.rpm unbound-debuginfo-1.17.1-12.oe2403.aarch64.rpm unbound-debugsource-1.17.1-12.oe2403.aarch64.rpm unbound-devel-1.17.1-12.oe2403.aarch64.rpm unbound-help-1.17.1-12.oe2403.aarch64.rpm unbound-libs-1.17.1-12.oe2403.aarch64.rpm unbound-utils-1.17.1-12.oe2403.aarch64.rpm python3-unbound-1.17.1-12.oe2403sp1.aarch64.rpm unbound-1.17.1-12.oe2403sp1.aarch64.rpm unbound-anchor-1.17.1-12.oe2403sp1.aarch64.rpm unbound-debuginfo-1.17.1-12.oe2403sp1.aarch64.rpm unbound-debugsource-1.17.1-12.oe2403sp1.aarch64.rpm unbound-devel-1.17.1-12.oe2403sp1.aarch64.rpm unbound-help-1.17.1-12.oe2403sp1.aarch64.rpm unbound-libs-1.17.1-12.oe2403sp1.aarch64.rpm unbound-utils-1.17.1-12.oe2403sp1.aarch64.rpm python3-unbound-1.17.1-12.oe2403sp2.aarch64.rpm unbound-1.17.1-12.oe2403sp2.aarch64.rpm unbound-anchor-1.17.1-12.oe2403sp2.aarch64.rpm unbound-debuginfo-1.17.1-12.oe2403sp2.aarch64.rpm unbound-debugsource-1.17.1-12.oe2403sp2.aarch64.rpm unbound-devel-1.17.1-12.oe2403sp2.aarch64.rpm unbound-help-1.17.1-12.oe2403sp2.aarch64.rpm unbound-libs-1.17.1-12.oe2403sp2.aarch64.rpm unbound-utils-1.17.1-12.oe2403sp2.aarch64.rpm python3-unbound-1.11.0-18.oe2003sp4.aarch64.rpm unbound-1.11.0-18.oe2003sp4.aarch64.rpm unbound-debuginfo-1.11.0-18.oe2003sp4.aarch64.rpm unbound-debugsource-1.11.0-18.oe2003sp4.aarch64.rpm unbound-devel-1.11.0-18.oe2003sp4.aarch64.rpm unbound-help-1.11.0-18.oe2003sp4.aarch64.rpm unbound-libs-1.11.0-18.oe2003sp4.aarch64.rpm python3-unbound-1.13.2-18.oe2203sp3.x86_64.rpm unbound-1.13.2-18.oe2203sp3.x86_64.rpm unbound-anchor-1.13.2-18.oe2203sp3.x86_64.rpm unbound-debuginfo-1.13.2-18.oe2203sp3.x86_64.rpm unbound-debugsource-1.13.2-18.oe2203sp3.x86_64.rpm unbound-devel-1.13.2-18.oe2203sp3.x86_64.rpm unbound-help-1.13.2-18.oe2203sp3.x86_64.rpm unbound-libs-1.13.2-18.oe2203sp3.x86_64.rpm python3-unbound-1.13.2-18.oe2203sp4.x86_64.rpm unbound-1.13.2-18.oe2203sp4.x86_64.rpm unbound-anchor-1.13.2-18.oe2203sp4.x86_64.rpm unbound-debuginfo-1.13.2-18.oe2203sp4.x86_64.rpm unbound-debugsource-1.13.2-18.oe2203sp4.x86_64.rpm unbound-devel-1.13.2-18.oe2203sp4.x86_64.rpm unbound-help-1.13.2-18.oe2203sp4.x86_64.rpm unbound-libs-1.13.2-18.oe2203sp4.x86_64.rpm python3-unbound-1.17.1-12.oe2403.x86_64.rpm unbound-1.17.1-12.oe2403.x86_64.rpm unbound-anchor-1.17.1-12.oe2403.x86_64.rpm unbound-debuginfo-1.17.1-12.oe2403.x86_64.rpm unbound-debugsource-1.17.1-12.oe2403.x86_64.rpm unbound-devel-1.17.1-12.oe2403.x86_64.rpm unbound-help-1.17.1-12.oe2403.x86_64.rpm unbound-libs-1.17.1-12.oe2403.x86_64.rpm unbound-utils-1.17.1-12.oe2403.x86_64.rpm python3-unbound-1.17.1-12.oe2403sp1.x86_64.rpm unbound-1.17.1-12.oe2403sp1.x86_64.rpm unbound-anchor-1.17.1-12.oe2403sp1.x86_64.rpm unbound-debuginfo-1.17.1-12.oe2403sp1.x86_64.rpm unbound-debugsource-1.17.1-12.oe2403sp1.x86_64.rpm unbound-devel-1.17.1-12.oe2403sp1.x86_64.rpm unbound-help-1.17.1-12.oe2403sp1.x86_64.rpm unbound-libs-1.17.1-12.oe2403sp1.x86_64.rpm unbound-utils-1.17.1-12.oe2403sp1.x86_64.rpm python3-unbound-1.17.1-12.oe2403sp2.x86_64.rpm unbound-1.17.1-12.oe2403sp2.x86_64.rpm unbound-anchor-1.17.1-12.oe2403sp2.x86_64.rpm unbound-debuginfo-1.17.1-12.oe2403sp2.x86_64.rpm unbound-debugsource-1.17.1-12.oe2403sp2.x86_64.rpm unbound-devel-1.17.1-12.oe2403sp2.x86_64.rpm unbound-help-1.17.1-12.oe2403sp2.x86_64.rpm unbound-libs-1.17.1-12.oe2403sp2.x86_64.rpm unbound-utils-1.17.1-12.oe2403sp2.x86_64.rpm python3-unbound-1.11.0-18.oe2003sp4.x86_64.rpm unbound-1.11.0-18.oe2003sp4.x86_64.rpm unbound-debuginfo-1.11.0-18.oe2003sp4.x86_64.rpm unbound-debugsource-1.11.0-18.oe2003sp4.x86_64.rpm unbound-devel-1.11.0-18.oe2003sp4.x86_64.rpm unbound-help-1.11.0-18.oe2003sp4.x86_64.rpm unbound-libs-1.11.0-18.oe2003sp4.x86_64.rpm unbound-1.13.2-18.oe2203sp3.src.rpm unbound-1.13.2-18.oe2203sp4.src.rpm unbound-1.17.1-12.oe2403.src.rpm unbound-1.17.1-12.oe2403sp1.src.rpm unbound-1.17.1-12.oe2403sp2.src.rpm unbound-1.11.0-18.oe2003sp4.src.rpm NLnet Unbound is an open source DNS server for the Netherlands NLnet team. NLnet Unbound has a security vulnerability that originates from the risk of cache poisoning when supporting EDNS Client Subnet, which may lead to Rebirthday attacks. 2025-08-08 CVE-2025-5994 openEuler-22.03-LTS-SP3 openEuler-22.03-LTS-SP4 openEuler-24.03-LTS openEuler-24.03-LTS-SP1 openEuler-24.03-LTS-SP2 openEuler-20.03-LTS-SP4 High 7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N unbound security update 2025-08-08 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1974