{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2025-30646 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2025-30646 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-30646 is a high-severity vulnerability in Juniper Junos, published on 9 Apr 2025. 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-2025-30646 and fix it if it is affected.\n\nWhat it is: CVE-2025-30646 is a high-severity vulnerability in Juniper Junos, published on 9 Apr 2025. 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-2025-30646 in the wild and no public exploit code.\n\nAffected product: Juniper Junos. 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-2025-30646/ (Markdown: https://insights.sbomify.com/CVE-2025-30646/index.md)","id":"CVE-2025-30646","markdown":"https://insights.sbomify.com/CVE-2025-30646/index.md","name":"CVE-2025-30646","record":{"aliases":["GHSA-c84c-ph5v-qwvg"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Juniper Junos OS","requires_auth":"none","summary":"An unauthenticated adjacent attacker can cause a denial of service by sending a malformed LLDP TLV when telemetry is active.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"juniper","cpe":[{"product":"junos","vendor":"juniper"},{"product":"junos_os_evolved","vendor":"juniper"}],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/V:C/RE:M","version":"4.0"},"cwes":[{"id":"CWE-195","name":"Signed to Unsigned Conversion Error"}],"description":"A Signed to Unsigned Conversion Error vulnerability in the Layer 2 Control Protocol daemon (l2cpd) of Juniper Networks Junos OS and Juniper Networks Junos OS Evolved allows an unauthenticated adjacent attacker sending a specifically malformed LLDP TLV to cause the l2cpd process to crash and restart, causing a Denial of Service (DoS).  Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.\n\nWhen an LLDP telemetry subscription is active, receipt of a specifically malformed LLDP TLV causes the l2cpd process to crash and restart.\n\nThis issue affects:\n\nJunos OS: \n\n  *  All versions before 21.2R3-S9, \n  *  from 21.4 before 21.4R3-S10, \n  *  from 22.2 before 22.2R3-S6, \n  *  from 22.4 before 22.4R3-S6, \n  *  from 23.2 before 23.2R2-S3, \n  *  from 23.4 before 23.4R2-S4, \n  *  from 24.2 before 24.2R2; \n\nJunos OS Evolved: \n\n  *  All versions before 21.4R3-S10-EVO,\n  *  from 22.2-EVO before 22.2R3-S6-EVO, \n  *  from 22.4-EVO before 22.4R3-S6-EVO, \n  *  from 23.2-EVO before 23.2R2-S3-EVO, \n  *  from 23.4-EVO before 23.4R2-S4-EVO, \n  *  from 24.2-EVO before 24.2R2-EVO.","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":"Junos OS and Junos OS Evolved: Receipt of a malformed LLDP TLV results in l2cpd crash","id":"CVE-2025-30646","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"juniper:junos","products":["juniper:junos","juniper:junos_os_evolved"],"type":"integer_overflow","year":"2025"},"n_packages":0,"n_references":1,"next":{"headline":"Junos OS: MX Series: Subscriber login/logout activity will lead to a memory leak","id":"CVE-2025-30647"},"packages":[],"prev":{"headline":"Junos OS: SRX Series: Transmission of specific control traffic sent out of a DS-Lite tunnel results in flowd crash","id":"CVE-2025-30645"},"products":["Junos OS","Junos OS Evolved"],"published":"2025-04-09","related":[{"cvss_score":9.8,"headline":"Juniper Junos OS EX Series and SRX Series PHP External Variable Modification","id":"CVE-2023-36845","kev_date_added":"2023-11-13","published":"2023-08-17"},{"cvss_score":8.8,"headline":"Juniper Junos OS Path Traversal","id":"CVE-2020-1631","kev_date_added":"2022-03-25","published":"2020-05-04"},{"cvss_score":6.7,"headline":"Juniper Junos OS Improper Isolation or Compartmentalization","id":"CVE-2025-21590","kev_date_added":"2025-03-13","published":"2025-03-12"},{"cvss_score":5.3,"headline":"Juniper Junos OS SRX Series Missing Authentication for Critical Function","id":"CVE-2023-36851","kev_date_added":"2023-11-13","published":"2023-09-26"},{"cvss_score":5.3,"headline":"Juniper Junos OS EX Series PHP External Variable Modification","id":"CVE-2023-36844","kev_date_added":"2023-11-13","published":"2023-08-17"},{"cvss_score":5.3,"headline":"Juniper Junos OS SRX Series Missing Authentication for Critical Function","id":"CVE-2023-36846","kev_date_added":"2023-11-13","published":"2023-08-17"},{"cvss_score":5.3,"headline":"Juniper Junos OS EX Series Missing Authentication for Critical Function","id":"CVE-2023-36847","kev_date_added":"2023-11-13","published":"2023-08-17"}],"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":"2025-04-09","vendors":["Juniper Networks"]},"summary":"An unauthenticated adjacent attacker can cause a denial of service by sending a malformed LLDP TLV when telemetry is active.","url":"https://insights.sbomify.com/CVE-2025-30646/"}