{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-51394 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-51394 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-51394 is a medium-severity vulnerability in silabs.com Ember ZNet SDK, published on 23 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-51394 and fix it if it is affected.\n\nWhat it is: CVE-2023-51394 is a medium-severity vulnerability in silabs.com Ember ZNet SDK, published on 23 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-51394 in the wild and no public exploit code.\n\nAffected product: silabs.com Ember ZNet SDK. 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-2023-51394/ (Markdown: https://insights.sbomify.com/CVE-2023-51394/index.md)","id":"CVE-2023-51394","markdown":"https://insights.sbomify.com/CVE-2023-51394/index.md","name":"CVE-2023-51394","record":{"aliases":["GHSA-fc74-wgp6-2pv9"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Ember ZNet SDK","requires_auth":"none","summary":"High traffic can cause a crash in Silicon Labs Ember ZNet SDK due to a null pointer dereference, impacting device availability.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Silabs","cpe":[{"product":"emberznet","vendor":"silabs"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-476","name":"NULL Pointer Dereference"}],"description":"High traffic environments may result in NULL Pointer Dereference vulnerability in Silicon Labs's Ember ZNet SDK before v7.4.0, causing a system crash.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Potential DoS for EFR32xxx parts in high traffic environments due to null buffer dereference / crash","id":"CVE-2023-51394","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"Z-Wave S0 Decryption Vulnerability in End Devices","id":"CVE-2023-51395"},"packages":[],"prev":{"headline":"Potential DoS due to BusFault and Assert in Ember ZNet legacy packet buffer","id":"CVE-2023-51393"},"products":["Ember ZNet SDK"],"published":"2024-02-23","related":[{"cvss_score":10,"headline":"Touchlink authentication bypass due to packets processed after timeout or out of range in Ember ZNet","id":"CVE-2023-41094","kev_date_added":null,"published":"2023-10-04"},{"cvss_score":7.5,"headline":"Out-of-bounds write in Zigbee Simple_Desc_req handling","id":"CVE-2026-85079","kev_date_added":null,"published":"2026-10-22"},{"cvss_score":7.5,"headline":"Out-of-bounds write in Zigbee Publish Price Matrix handling","id":"CVE-2026-94502","kev_date_added":null,"published":"2026-10-22"},{"cvss_score":7.1,"headline":"Global ZCL command parser missing minimum-length validation in EmberZNet v9.0.2","id":"CVE-2026-4526","kev_date_added":null,"published":"2026-06-25"},{"cvss_score":7.1,"headline":"Color Control hue/saturation assertion abort in EmberZNet v9.0.2","id":"CVE-2026-47145","kev_date_added":null,"published":"2026-06-25"},{"cvss_score":7.1,"headline":"Color Control color-temperature assertion abort in EmberZNet v9.0.2","id":"CVE-2026-47146","kev_date_added":null,"published":"2026-06-25"},{"cvss_score":7.1,"headline":"OTA server raw parser missing per-field bounds validation in EmberZNet v9.0.2","id":"CVE-2026-47147","kev_date_added":null,"published":"2026-06-25"}],"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2024-08-16","vendors":["silabs.com"]},"summary":"High traffic can cause a crash in Silicon Labs Ember ZNet SDK due to a null pointer dereference, impacting device availability.","url":"https://insights.sbomify.com/CVE-2023-51394/"}