{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2025-66442 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2025-66442 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-66442 is a medium-severity vulnerability in Arm Mbed Tls, published on 1 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-66442 and fix it if it is affected.\n\nWhat it is: CVE-2025-66442 is a medium-severity vulnerability in Arm Mbed Tls, published on 1 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2025-66442 in the wild and no public exploit code.\n\nAffected product: Arm Mbed Tls. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2025-66442/ (Markdown: https://insights.sbomify.com/CVE-2025-66442/index.md)","id":"CVE-2025-66442","markdown":"https://insights.sbomify.com/CVE-2025-66442/index.md","name":"CVE-2025-66442","record":{"aliases":["DEBIAN-CVE-2025-66442","GHSA-56v8-wv3m-qgg6","JLSEC-2026-463","UBUNTU-CVE-2025-66442"],"analysis":{"component_type":"library","fix_type":"no_fix_stated","impacts":["data_read"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Mbed TLS crypto library","requires_auth":"none","summary":"Attackers can exploit a compiler-induced timing side channel in Mbed TLS RSA and CBC/ECB decryption to potentially recover sensitive cryptographic data.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"mbed_tls","vendor":"arm"},{"product":"tf-psa-crypto","vendor":"arm"}],"cvss":{"score":5.1,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-385","name":"Covert Timing Channel"}],"description":"In Mbed TLS through 4.0.0, there is a compiler-induced timing side channel (in RSA and CBC/ECB decryption) that only occurs with LLVM's select-optimize feature. TF-PSA-Crypto through 1.0.0 is also affected.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Information disclosure in n/a","id":"CVE-2025-66442","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"arm:mbed_tls","products":["arm:mbed_tls"],"type":"information_disclosure","year":"2025"},"n_packages":0,"n_references":4,"next":{"headline":"Denial of service in Infinity","id":"CVE-2025-66443"},"packages":[],"prev":{"headline":"SQL injection in n/a","id":"CVE-2025-66440"},"products":["n/a"],"published":"2026-04-01","related":[{"cvss_score":9.8,"headline":"Deserialization in n/a","id":"CVE-2026-34877","kev_date_added":null,"published":"2026-04-02"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2022-46393","kev_date_added":null,"published":"2022-12-15"},{"cvss_score":9.8,"headline":"Use after free in n/a","id":"CVE-2021-44732","kev_date_added":null,"published":"2021-12-20"},{"cvss_score":9.8,"headline":"Integer overflow in n/a","id":"CVE-2017-18187","kev_date_added":null,"published":"2018-02-14"},{"cvss_score":9.8,"headline":"Memory corruption in ARM mbed TLS before 1.3.22, before 2.1.10, and before 2.7.0","id":"CVE-2018-0487","kev_date_added":null,"published":"2018-02-13"},{"cvss_score":9.8,"headline":"Memory corruption in ARM mbed TLS before 1.3.22, before 2.1.10, and before 2.7.0","id":"CVE-2018-0488","kev_date_added":null,"published":"2018-02-13"},{"cvss_score":9.1,"headline":"Weak cryptography in n/a","id":"CVE-2026-34872","kev_date_added":null,"published":"2026-04-01"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-04-01","vendors":["n/a"]},"summary":"Attackers can exploit a compiler-induced timing side channel in Mbed TLS RSA and CBC/ECB decryption to potentially recover sensitive cryptographic data.","url":"https://insights.sbomify.com/CVE-2025-66442/"}