An update for qemu is now available for openEuler-24.03-LTS-SP3 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2026-3902 Final 1.0 1.0 2026-09-20 Initial 2026-09-20 2026-09-20 openEuler SA Tool V1.0 2026-09-20 qemu security update An update for qemu is now available for openEuler-24.03-LTS-SP3 QEMU is a FAST! processor emulator using dynamic translation to achieve good emulation speed. Security Fix(es): An unknown vulnerability exists in QEMU, with no detailed description available at this time.(CVE-2026-15264) CVE-2026-18054 is a vulnerability in QEMU, details are not yet disclosed.(CVE-2026-18054) This update to qemu-10.2.4-2.mga10 fixes 14 CVEs from 10.2.3 and 2 from 10.2.4(CVE-2026-3890) This update to qemu-10.2.4-2.mga10 fixes 14 CVEs from 10.2.3 and 2 from 10.2.4. This vulnerability (CVE-2026-48004) is one of them.(CVE-2026-48004) QEMU's virtio-rng frontend does not cancel or detach an RngRequest that is still pending on the rng-random backend before releasing the VirtIORNG object in virtio_rng_device_unrealize(). When a virtio-rng device is hot-plugged (device_del) and there are still entropy requests pending, the delayed backend completion calls the chr_read callback on the released object, causing the host heap to be use-after-free. An attacker able to trigger hot-plugging of the device could exploit this memory security flaw to compromise the QEMU process, causing a denial of service or potential code execution on the host.(CVE-2026-50624) No detailed vulnerability information available.(CVE-2026-61402) An unspecified vulnerability exists in QEMU, with no detailed information available at this time.(CVE-2026-61476) CVE-2026-63109 is a vulnerability in QEMU. Details of this vulnerability have not been publicly disclosed yet.(CVE-2026-63109) No detailed description available.(CVE-2026-63110) An unknown vulnerability exists in QEMU, the details of which have not yet been disclosed. Attackers may exploit this vulnerability to cause unknown impacts.(CVE-2026-63320) An unknown vulnerability exists in QEMU, the details of which have not yet been disclosed. Attackers may exploit this vulnerability to cause unknown impacts.(CVE-2026-63321) When QEMU's uefi-vars-x64 virtual device processes the VarCheckPolicy REGISTER command, the uefi_vars_mm_check_policy_register() function directly reads pe->size without first verifying whether the request length contains the complete variable_policy_entry header. The guest can send a REGISTER request with a length of exactly sizeof(mm_check_policy) (excluding variable_policy_entry), causing the func pointer to cross the end of the allocated MM communication buffer, causing the host heap buffer to read out of bounds (heap-buffer-overflow). An attacker could exploit this memory security flaw to compromise the QEMU process, causing a denial of service or potential code execution on the host.(CVE-2026-63322) An undisclosed vulnerability exists in QEMU, the details of which are not yet publicly available.(CVE-2026-63323) An unknown type vulnerability exists in QEMU (Quick Emulator). The specific details have not been disclosed yet.(CVE-2026-65928) CVE-2026-65929 is a security vulnerability affecting QEMU, with no detailed technical information disclosed yet.(CVE-2026-65929) An unspecified vulnerability exists in QEMU, the details of which have not been disclosed.(CVE-2026-66022) QEMU's VNC extended clipboard handler, after decompressing a client-controlled clipboard payload, compares the declared text size to the entire decompression buffer size, but then copies tsize bytes from buf + 4. The correct boundary is the remaining data length after the 4-byte length field. Therefore, a VNC client can cause QEMU to read up to 3 bytes out of bounds from the end of the decompressed heap buffer; a second VNC client can observe these bytes through the normal VNC extended clipboard PROVIDE path.(CVE-2026-8343) An update for qemu is now available for master/openEuler-20.03-LTS-SP4/openEuler-24.03-LTS-SP3. 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 qemu https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3902 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-15264 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-18054 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-3890 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-48004 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-50624 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-61402 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-61476 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-63109 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-63110 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-63320 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-63321 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-63322 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-63323 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-65928 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-65929 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-66022 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-8343 https://nvd.nist.gov/vuln/detail/CVE-2026-15264 https://nvd.nist.gov/vuln/detail/CVE-2026-18054 https://nvd.nist.gov/vuln/detail/CVE-2026-3890 https://nvd.nist.gov/vuln/detail/CVE-2026-48004 https://nvd.nist.gov/vuln/detail/CVE-2026-50624 https://nvd.nist.gov/vuln/detail/CVE-2026-61402 https://nvd.nist.gov/vuln/detail/CVE-2026-61476 https://nvd.nist.gov/vuln/detail/CVE-2026-63109 https://nvd.nist.gov/vuln/detail/CVE-2026-63110 https://nvd.nist.gov/vuln/detail/CVE-2026-63320 https://nvd.nist.gov/vuln/detail/CVE-2026-63321 https://nvd.nist.gov/vuln/detail/CVE-2026-63322 https://nvd.nist.gov/vuln/detail/CVE-2026-63323 https://nvd.nist.gov/vuln/detail/CVE-2026-65928 https://nvd.nist.gov/vuln/detail/CVE-2026-65929 https://nvd.nist.gov/vuln/detail/CVE-2026-66022 https://nvd.nist.gov/vuln/detail/CVE-2026-8343 openEuler-24.03-LTS-SP3 qemu-8.2.0-91.oe2403sp3.src.rpm qemu-8.2.0-91.oe2403sp3.x86_64.rpm qemu-block-curl-8.2.0-91.oe2403sp3.x86_64.rpm qemu-block-iscsi-8.2.0-91.oe2403sp3.x86_64.rpm qemu-block-rbd-8.2.0-91.oe2403sp3.x86_64.rpm qemu-block-ssh-8.2.0-91.oe2403sp3.x86_64.rpm qemu-debuginfo-8.2.0-91.oe2403sp3.x86_64.rpm qemu-debugsource-8.2.0-91.oe2403sp3.x86_64.rpm qemu-guest-agent-8.2.0-91.oe2403sp3.x86_64.rpm qemu-hw-usb-host-8.2.0-91.oe2403sp3.x86_64.rpm qemu-img-8.2.0-91.oe2403sp3.x86_64.rpm qemu-seabios-8.2.0-91.oe2403sp3.x86_64.rpm qemu-system-aarch64-8.2.0-91.oe2403sp3.x86_64.rpm qemu-system-arm-8.2.0-91.oe2403sp3.x86_64.rpm qemu-system-riscv-8.2.0-91.oe2403sp3.x86_64.rpm qemu-system-x86_64-8.2.0-91.oe2403sp3.x86_64.rpm qemu-user-8.2.0-91.oe2403sp3.x86_64.rpm qemu-user-binfmt-8.2.0-91.oe2403sp3.x86_64.rpm qemu-user-static-8.2.0-91.oe2403sp3.x86_64.rpm qemu-help-8.2.0-91.oe2403sp3.noarch.rpm qemu-8.2.0-91.oe2403sp3.aarch64.rpm qemu-block-curl-8.2.0-91.oe2403sp3.aarch64.rpm qemu-block-iscsi-8.2.0-91.oe2403sp3.aarch64.rpm qemu-block-rbd-8.2.0-91.oe2403sp3.aarch64.rpm qemu-block-ssh-8.2.0-91.oe2403sp3.aarch64.rpm qemu-debuginfo-8.2.0-91.oe2403sp3.aarch64.rpm qemu-debugsource-8.2.0-91.oe2403sp3.aarch64.rpm qemu-guest-agent-8.2.0-91.oe2403sp3.aarch64.rpm qemu-hw-usb-host-8.2.0-91.oe2403sp3.aarch64.rpm qemu-img-8.2.0-91.oe2403sp3.aarch64.rpm qemu-system-aarch64-8.2.0-91.oe2403sp3.aarch64.rpm qemu-system-arm-8.2.0-91.oe2403sp3.aarch64.rpm qemu-system-riscv-8.2.0-91.oe2403sp3.aarch64.rpm qemu-system-x86_64-8.2.0-91.oe2403sp3.aarch64.rpm qemu-user-8.2.0-91.oe2403sp3.aarch64.rpm qemu-user-binfmt-8.2.0-91.oe2403sp3.aarch64.rpm qemu-user-static-8.2.0-91.oe2403sp3.aarch64.rpm An unknown vulnerability exists in QEMU, with no detailed description available at this time. 2026-09-20 CVE-2026-15264 openEuler-24.03-LTS-SP3 High 8.8 AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H qemu security update 2026-09-20 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3902 CVE-2026-18054 is a vulnerability in QEMU, details are not yet disclosed. 2026-09-20 CVE-2026-18054 openEuler-24.03-LTS-SP3 Low 3.8 AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N qemu security update 2026-09-20 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3902 This update to qemu-10.2.4-2.mga10 fixes 14 CVEs from 10.2.3 and 2 from 10.2.4 2026-09-20 CVE-2026-3890 openEuler-24.03-LTS-SP3 Medium 6.5 AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H qemu security update 2026-09-20 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3902 This update to qemu-10.2.4-2.mga10 fixes 14 CVEs from 10.2.3 and 2 from 10.2.4. This vulnerability (CVE-2026-48004) is one of them. 2026-09-20 CVE-2026-48004 openEuler-24.03-LTS-SP3 Medium 4.7 AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H qemu security update 2026-09-20 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3902 QEMU's virtio-rng frontend does not cancel or detach an RngRequest that is still pending on the rng-random backend before releasing the VirtIORNG object in virtio_rng_device_unrealize(). When a virtio-rng device is hot-plugged (device_del) and there are still entropy requests pending, the delayed backend completion calls the chr_read callback on the released object, causing the host heap to be use-after-free. An attacker able to trigger hot-plugging of the device could exploit this memory security flaw to compromise the QEMU process, causing a denial of service or potential code execution on the host. 2026-09-20 CVE-2026-50624 openEuler-24.03-LTS-SP3 Medium 4.1 AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H qemu security update 2026-09-20 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3902 No detailed vulnerability information available. 2026-09-20 CVE-2026-61402 openEuler-24.03-LTS-SP3 High 7.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H qemu security update 2026-09-20 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3902 An unspecified vulnerability exists in QEMU, with no detailed information available at this time. 2026-09-20 CVE-2026-61476 openEuler-24.03-LTS-SP3 Medium 6.5 AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H qemu security update 2026-09-20 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3902 CVE-2026-63109 is a vulnerability in QEMU. Details of this vulnerability have not been publicly disclosed yet. 2026-09-20 CVE-2026-63109 openEuler-24.03-LTS-SP3 Low 3.8 AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N qemu security update 2026-09-20 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3902 No detailed description available. 2026-09-20 CVE-2026-63110 openEuler-24.03-LTS-SP3 Low 3.4 AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L qemu security update 2026-09-20 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3902 An unknown vulnerability exists in QEMU, the details of which have not yet been disclosed. Attackers may exploit this vulnerability to cause unknown impacts. 2026-09-20 CVE-2026-63320 openEuler-24.03-LTS-SP3 Medium 5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L qemu security update 2026-09-20 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3902 An unknown vulnerability exists in QEMU, the details of which have not yet been disclosed. Attackers may exploit this vulnerability to cause unknown impacts. 2026-09-20 CVE-2026-63321 openEuler-24.03-LTS-SP3 Medium 5.2 AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:L qemu security update 2026-09-20 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3902 When QEMU's uefi-vars-x64 virtual device processes the VarCheckPolicy REGISTER command, the uefi_vars_mm_check_policy_register() function directly reads pe->size without first verifying whether the request length contains the complete variable_policy_entry header. The guest can send a REGISTER request with a length of exactly sizeof(mm_check_policy) (excluding variable_policy_entry), causing the func pointer to cross the end of the allocated MM communication buffer, causing the host heap buffer to read out of bounds (heap-buffer-overflow). An attacker could exploit this memory security flaw to compromise the QEMU process, causing a denial of service or potential code execution on the host. 2026-09-20 CVE-2026-63322 openEuler-24.03-LTS-SP3 Medium 4.4 AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H qemu security update 2026-09-20 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3902 An undisclosed vulnerability exists in QEMU, the details of which are not yet publicly available. 2026-09-20 CVE-2026-63323 openEuler-24.03-LTS-SP3 High 7.0 AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:H qemu security update 2026-09-20 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3902 An unknown type vulnerability exists in QEMU (Quick Emulator). The specific details have not been disclosed yet. 2026-09-20 CVE-2026-65928 openEuler-24.03-LTS-SP3 Medium 4.4 AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L qemu security update 2026-09-20 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3902 CVE-2026-65929 is a security vulnerability affecting QEMU, with no detailed technical information disclosed yet. 2026-09-20 CVE-2026-65929 openEuler-24.03-LTS-SP3 Medium 5.5 AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H qemu security update 2026-09-20 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3902 An unspecified vulnerability exists in QEMU, the details of which have not been disclosed. 2026-09-20 CVE-2026-66022 openEuler-24.03-LTS-SP3 High 7.8 AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H qemu security update 2026-09-20 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3902 QEMU's VNC extended clipboard handler, after decompressing a client-controlled clipboard payload, compares the declared text size to the entire decompression buffer size, but then copies tsize bytes from buf + 4. The correct boundary is the remaining data length after the 4-byte length field. Therefore, a VNC client can cause QEMU to read up to 3 bytes out of bounds from the end of the decompressed heap buffer; a second VNC client can observe these bytes through the normal VNC extended clipboard PROVIDE path. 2026-09-20 CVE-2026-8343 openEuler-24.03-LTS-SP3 Medium 5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N qemu security update 2026-09-20 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3902