{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-77206 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-77206 is a high-severity vulnerability in The Libreswan Project libreswan, published on 13 Oct 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-2026-77206 and fix it if it is affected.\n\nWhat it is: CVE-2026-77206 is a high-severity vulnerability in The Libreswan Project libreswan, published on 13 Oct 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-2026-77206 in the wild and no public exploit code.\n\nAffected product: The Libreswan Project libreswan. 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-2026-77206/ (Markdown: https://insights.sbomify.com/CVE-2026-77206/index.md)","id":"CVE-2026-77206","markdown":"https://insights.sbomify.com/CVE-2026-77206/index.md","name":"CVE-2026-77206","record":{"aliases":["AZL-108030","DEBIAN-CVE-2026-77206","GHSA-37xg-hvw9-pr82","UBUNTU-CVE-2026-77206"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"IPsec VPN implementation","requires_auth":"none","summary":"A malicious IKE_AUTH packet can trigger a null pointer dereference in Libreswan, causing a daemon crash and denial of service without authentication.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"libreswan","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-476","name":"NULL Pointer Dereference"}],"description":"Libreswan's IKEv2 state machine has a null pointer dereference bug in the EAP handling code for authentication. As a result of inconsistency within the IKEv2 state machine code, this bug can be triggered by any IKEv2 connection, even if EAP is not configured at all. The error is caused by a fall-through where it incorrectly dereferences ike-\u003esa.st_eap which is NULL. A malicious IKE_AUTH packet can trigger this bug, meaning the peer does not need to be authenticated. The bug results in a crash and restart of the pluto daemon. No remote code execution is possible. Continued exploitation can cause a denial of service.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"IKEv2 pre-authentication Null Pointer Dereference in EAP code","id":"CVE-2026-77206","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Null Pointer Dereference in PKCS#7 bundle with no certificates","id":"CVE-2026-77207"},"packages":[],"prev":{"headline":"Denial of Service via sending bogus X.509 certificates","id":"CVE-2026-77205"},"products":["libreswan"],"published":"2026-10-13","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2026-10-16","vendors":["The Libreswan Project"]},"summary":"A malicious IKE_AUTH packet can trigger a null pointer dereference in Libreswan, causing a daemon crash and denial of service without authentication.","url":"https://insights.sbomify.com/CVE-2026-77206/"}