{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-64438 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2025-64438 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-64438 is a low-severity denial of service vulnerability in eProsima Fast-DDS, published on 3 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-64438 and fix it if it is affected.\n\nWhat it is: CVE-2025-64438 is a low-severity denial of service vulnerability in eProsima Fast-DDS, published on 3 Feb 2026. 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-2025-64438 in the wild and no public exploit code.\n\nAffected product: eProsima Fast-DDS. 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-2025-64438/ (Markdown: https://insights.sbomify.com/CVE-2025-64438/index.md)","id":"CVE-2025-64438","markdown":"https://insights.sbomify.com/CVE-2025-64438/index.md","name":"CVE-2025-64438","record":{"aliases":["DEBIAN-CVE-2025-64438","UBUNTU-CVE-2025-64438"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Fast-DDS library","requires_auth":"none","summary":"Remote attackers can cause denial of service in Fast-DDS by sending crafted RTPS GAP packets, leading to unbounded memory consumption and process termination.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"fast_dds","vendor":"eprosima"}],"cvss":{"score":1.7,"severity":"low","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U","version":"4.0"},"cwes":[{"id":"CWE-835","name":"Loop with Unreachable Exit Condition"}],"description":"Fast DDS is a C++ implementation of the DDS (Data Distribution Service) standard of the OMG (Object Management Group\n). Prior to versions 3.4.1, 3.3.1, and 2.6.11, a remotely triggerable Out-of-Memory (OOM) denial-of-service exists in Fast\n-DDS when processing RTPS GAP submessages under RELIABLE QoS. By sending a tiny GAP packet with a huge gap range (`gapList\n.base - gapStart`), an attacker drives `StatefulReader::processGapMsg()` into an unbounded loop that inserts millions of s\nequence numbers into `WriterProxy::changes_received_` (`std::set`), causing multi-GB heap growth and process termination. \nNo authentication is required beyond network reachability to the reader on the DDS domain. In environments without an RSS \nlimit (non-ASan / unlimited), memory consumption was observed to rise to ~64 GB. Versions 3.4.1, 3.3.1, and 2.6.11 patch t\nhe issue.","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":"Fast-DDS: Unbounded GAP range triggers OOM DoS under RELIABLE QoS","id":"CVE-2025-64438","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2025"},"n_packages":0,"n_references":4,"next":{"headline":"LangGraph Checkpoint affected by RCE in \"json\" mode of JsonPlusSerializer","id":"CVE-2025-64439"},"packages":[],"prev":{"headline":"KubeVirt Isolation Detection Flaw Allows Arbitrary File Permission Changes","id":"CVE-2025-64437"},"products":["Fast-DDS"],"published":"2026-02-03","related":[{"cvss_score":10,"headline":"Security feature bypass in n/a","id":"CVE-2025-67108","kev_date_added":null,"published":"2025-12-23"},{"cvss_score":9.7,"headline":"Manipulated DATA Submessage causes a heap-buffer-overflow error","id":"CVE-2024-28231","kev_date_added":null,"published":"2024-03-20"},{"cvss_score":9.7,"headline":"Invalid DATA_FRAG Submessage causes a bad-free error","id":"CVE-2023-50716","kev_date_added":null,"published":"2024-03-06"},{"cvss_score":9.7,"headline":"Disconnect Vulnerability in RTPS Packets Used by SROS2","id":"CVE-2023-50257","kev_date_added":null,"published":"2024-02-19"},{"cvss_score":8.6,"headline":"Malformed DATA submessage leads to bad-free error in Fast-DDS","id":"CVE-2023-42459","kev_date_added":null,"published":"2023-10-16"},{"cvss_score":8.2,"headline":"FastDDS crash when publisher send malformed packet","id":"CVE-2024-30258","kev_date_added":null,"published":"2024-05-13"},{"cvss_score":8.2,"headline":"FastDDS heap buffer overflow when publisher sends malformed packet","id":"CVE-2024-30259","kev_date_added":null,"published":"2024-05-13"}],"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":"2026-02-03","vendors":["eProsima"]},"summary":"Remote attackers can cause denial of service in Fast-DDS by sending crafted RTPS GAP packets, leading to unbounded memory consumption and process termination.","url":"https://insights.sbomify.com/CVE-2025-64438/"}