{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-64522 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-64522 is a high-severity vulnerability in Linux, published on 25 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-64522 and fix it if it is affected.\n\nWhat it is: CVE-2026-64522 is a high-severity vulnerability in Linux, published on 25 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-64522 in the wild and no public exploit code.\n\nAffected product: Linux. 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-2026-64522/ (Markdown: https://insights.sbomify.com/CVE-2026-64522/index.md)","id":"CVE-2026-64522","markdown":"https://insights.sbomify.com/CVE-2026-64522/index.md","name":"CVE-2026-64522","record":{"aliases":["BELL-CVE-2026-64522","DEBIAN-CVE-2026-64522","GHSA-x5f7-rh4c-gxvr","ROOT-OS-UBUNTU-2204-CVE-2026-64522","UBUNTU-CVE-2026-64522"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"Linux kernel","requires_auth":"none","summary":"A logic error in the Linux kernel's mlx5e driver causes an integer underflow in eswitch mode blocks during IPsec SA acquisition, potentially leading to denial of service.","user_interaction":"required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: Fix eswitch mode block underflow on IPsec acquire SA\n\nmlx5e_xfrm_add_state() handles acquire-flow temporary SAs by allocating\nsoftware state and skipping hardware offload setup.\n\nThat path jumps to the common success label before taking the eswitch mode\nblock. After tunnel-mode validation was moved earlier, the common success\nlabel unconditionally calls mlx5_eswitch_unblock_mode(). For acquire SAs,\nthis decrements esw-\u003eoffloads.num_block_mode without a matching increment.\n\nReturn directly after installing the acquire SA offload handle, so only the\npaths that successfully called mlx5_eswitch_block_mode() call the matching\nunblock.","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":"net/mlx5e: Fix eswitch mode block underflow on IPsec acquire SA","id":"CVE-2026-64522","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"net/handshake: Take a long-lived file reference at submit","id":"CVE-2026-64523"},"packages":[],"prev":{"headline":"pinctrl: meson: amlogic-a4: fix deadlock issue","id":"CVE-2026-64521"},"products":["Linux"],"published":"2026-07-25","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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-19","vendors":["Linux"]},"summary":"A logic error in the Linux kernel's mlx5e driver causes an integer underflow in eswitch mode blocks during IPsec SA acquisition, potentially leading to denial of service.","url":"https://insights.sbomify.com/CVE-2026-64522/"}