CVE-2025-48946 SUSE CVE security@suse.de SUSE Security Team SUSE CVE-2025-48946 Interim 1 5 2026-03-05T00:32:28Z current 2025-06-02T23:12:50Z 2026-03-05T00:32:28Z cve-database/bin/generate-cvrf-cve.pl 2020-12-27T01:00:00Z CVE-2025-48946 liboqs is a C-language cryptographic library that provides implementations of post-quantum cryptography algorithms. liboqs prior to version 0.13.0 supports the HQC algorithm, an algorithm with a theoretical design flaw which leads to large numbers of malformed ciphertexts sharing the same implicit rejection value. Currently, no concrete attack on the algorithm is known. However, prospective users of HQC must take extra care when using the algorithm in protocols involving key derivation. In particular, HQC does not provide the same security guarantees as Kyber or ML-KEM. There is currently no patch for the HQC flaw available in liboqs, so HQC is disabled by default in liboqs starting from version 0.13.0. OQS will update its implementation after the HQC team releases an updated algorithm specification. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). https://www.suse.com/support/security/rating/ SUSE Security Ratings SUSE Linux Enterprise Module for Basesystem 15 SP6 SUSE Linux Enterprise Module for Basesystem 15 SP7 SUSE Linux Enterprise Module for Basesystem 15 SP6 SUSE Linux Enterprise Module for Basesystem 15 SP7 SUSE Linux Enterprise Module for Basesystem 15 SP6 SUSE Linux Enterprise Server 15 SP6-LTSS SUSE Linux Enterprise Module for Basesystem 15 SP7 SUSE Linux Enterprise Server 16.0 SUSE Linux Enterprise Module for Basesystem 15 SP6 SUSE Linux Enterprise Server for SAP Applications 15 SP6 SUSE Linux Enterprise Module for Basesystem 15 SP7 SUSE Linux Enterprise Server for SAP applications 16.0 openSUSE Leap 15.6 liboqs liboqs-devel liboqs-devel-32bit liboqs4 liboqs4-32bit liboqs7 liboqs7-32bit liboqs-devel as a component of SUSE Linux Enterprise Module for Basesystem 15 SP6 liboqs4 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP6 liboqs7 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP6 liboqs as a component of SUSE Linux Enterprise Module for Basesystem 15 SP6 liboqs-devel as a component of SUSE Linux Enterprise Module for Basesystem 15 SP7 liboqs7 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP7 liboqs as a component of SUSE Linux Enterprise Module for Basesystem 15 SP7 liboqs-devel as a component of SUSE Linux Enterprise Server 15 SP6-LTSS liboqs4 as a component of SUSE Linux Enterprise Server 15 SP6-LTSS liboqs7 as a component of SUSE Linux Enterprise Server 15 SP6-LTSS liboqs as a component of SUSE Linux Enterprise Server 15 SP6-LTSS liboqs-devel as a component of SUSE Linux Enterprise Server 16.0 liboqs7 as a component of SUSE Linux Enterprise Server 16.0 liboqs as a component of SUSE Linux Enterprise Server 16.0 liboqs-devel as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP6 liboqs4 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP6 liboqs7 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP6 liboqs as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP6 liboqs-devel as a component of SUSE Linux Enterprise Server for SAP applications 16.0 liboqs7 as a component of SUSE Linux Enterprise Server for SAP applications 16.0 liboqs as a component of SUSE Linux Enterprise Server for SAP applications 16.0 liboqs-devel as a component of openSUSE Leap 15.6 liboqs-devel-32bit as a component of openSUSE Leap 15.6 liboqs4 as a component of openSUSE Leap 15.6 liboqs4-32bit as a component of openSUSE Leap 15.6 liboqs7 as a component of openSUSE Leap 15.6 liboqs7-32bit as a component of openSUSE Leap 15.6 liboqs as a component of openSUSE Leap 15.6 liboqs is a C-language cryptographic library that provides implementations of post-quantum cryptography algorithms. liboqs prior to version 0.13.0 supports the HQC algorithm, an algorithm with a theoretical design flaw which leads to large numbers of malformed ciphertexts sharing the same implicit rejection value. Currently, no concrete attack on the algorithm is known. However, prospective users of HQC must take extra care when using the algorithm in protocols involving key derivation. In particular, HQC does not provide the same security guarantees as Kyber or ML-KEM. There is currently no patch for the HQC flaw available in liboqs, so HQC is disabled by default in liboqs starting from version 0.13.0. OQS will update its implementation after the HQC team releases an updated algorithm specification. CVE-2025-48946 moderate 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N