{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111280 exists.","fix":"No fix has been published for CVE-2026-111280 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-111280 is a high-severity memory corruption vulnerability in davenardella snap7, published on 15 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-2026-111280 and fix it if it is affected.\n\nWhat it is: CVE-2026-111280 is a high-severity memory corruption vulnerability in davenardella snap7, published on 15 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111280 exists.\n\nAffected product: davenardella snap7. 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-2026-111280/ (Markdown: https://insights.sbomify.com/CVE-2026-111280/index.md)","id":"CVE-2026-111280","markdown":"https://insights.sbomify.com/CVE-2026-111280/index.md","name":"CVE-2026-111280","record":{"aliases":["GHSA-3jmx-fccg-jcq7","UBUNTU-CVE-2026-111280"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Industrial PLC library","requires_auth":"none","summary":"Malicious PLCs can trigger an out-of-bounds write in snap7, causing memory corruption and crashes in SCADA or HMI systems.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.3,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"snap7 through 1.4.3 contains an out-of-bounds write vulnerability in TSnap7MicroClient::opReadArea() that allows malicious S7 peers to overflow client buffers via an unchecked DataLength field. Rogue or impersonated PLCs can return crafted ReadVar responses causing memcpy of up to 65535 bytes into caller buffers, crashing SCADA, HMI, or gateway processes and corrupting memory.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"snap7 through 1.4.3 Out-of-Bounds Write via TSnap7MicroClient::opReadArea","id":"CVE-2026-111280","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"Jooan JA-A12 Unauthenticated Root RCE via SetDiagMode Hard-Coded Credentials","id":"CVE-2026-111281"},"packages":[],"prev":{"headline":"Dragonfly through 2.0.2 Unbounded Memory Allocation via Negative COUNT in HRANDFIELD, ZRANDMEMBER and SRANDMEMBER","id":"CVE-2026-111279"},"products":["snap7"],"published":"2026-10-15","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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-29","vendors":["davenardella"]},"summary":"Malicious PLCs can trigger an out-of-bounds write in snap7, causing memory corruption and crashes in SCADA or HMI systems.","url":"https://insights.sbomify.com/CVE-2026-111280/"}