{"id":"CVE-2026-47235","aliases":[],"cve":{"records":[{"id":"CVE-2026-47235","source":"GitHub_M","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-05-18T22:54:18.271Z","published":"2026-10-28T15:38:21.113Z","modified":"2026-10-29T18:38:47.642Z"}],"publishers":[{"name":"GitHub_M","role":"CNA","organizationId":"a0819718-46f1-4df5-94e2-005712e83aaa","modified":"2026-10-28T15:38:21.113Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-10-29T18:38:47.642Z"}],"references":[{"url":"https://github.com/simulationcraft/simc/security/advisories/GHSA-wc9c-hfh3-phxx","tags":["x_refsource_CONFIRM"],"source":"GitHub_M"},{"url":"https://github.com/simulationcraft/simc/commit/aff85992d284ca4621e784c6b065a271b22f629d","tags":["x_refsource_MISC"],"source":"GitHub_M"},{"url":"https://github.com/simulationcraft/simc/security/advisories/GHSA-wc9c-hfh3-phxx","tags":["exploit"],"source":"CISA-ADP"}],"weaknesses":[{"id":"CWE-122","description":"CWE-122: Heap-based Buffer Overflow","source":"GitHub_M"},{"id":"CWE-787","description":"CWE-787: Out-of-bounds Write","source":"GitHub_M"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-10-29T18:38:11.836574Z","decisions":[{"name":"Exploitation","value":"poc"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"total"}]}]},"title":"SimulationCraft: Heap-Based Buffer Overflow / Out-of-Bounds Write in SimulationCraft's gem_id Array","titleSource":"GitHub_M","descriptionSource":"GitHub_M","description":"SimulationCraft is a tool to explore combat mechanics in World of Warcraft. In builds after release-820-01 and before the identified May 7, 2026 nightly, the `bcp_api.cpp` loop over the JSON `sockets` array uses `slot_data[\"sockets\"].Size()` without bounding `gem_idx` by `MAX_GEM_SLOTS`, which is four in `engine/sc_enums.hpp`. The destination `gem_id` and `gem_bonus_id` arrays in `engine/item/item.hpp` have only four elements. More than four socket entries therefore write beyond `gem_id` into the adjacent `gem_bonus_id` vector storage; `bonus_list` entries can also access `gem_bonus_id` out of bounds. Corrupting a vector's `_M_start` pointer causes the `item_t` destructor to free an attacker-influenced pointer during normal cleanup. The advisory reports crashes and code execution demonstrated in a testing environment. Attack inputs can arrive through a malicious `.simc` profile with a `[[equipment]]` section, a compromised addon export, or `Battle.net API` responses modified by an attacker with a privileged network position. The fix is contained in the nightly build identified as simc-1205-01-516b5d7; no containing release tag is available.","score":7.5,"severity":"high","published":"2026-10-28T15:38:21.113Z","modified":"2026-10-29T18:38:47.642Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"simulationcraft","name":"simc","platforms":[],"versions":[{"version":"< aff85992d284ca4621e784c6b065a271b22f629d","status":"affected"}],"cpes":[],"source":"GitHub_M","url":"https://www.cve.org/CVERecord?id=CVE-2026-47235"}],"remediation":[],"references":["https://github.com/simulationcraft/simc/security/advisories/GHSA-wc9c-hfh3-phxx","https://github.com/simulationcraft/simc/commit/aff85992d284ca4621e784c6b065a271b22f629d"],"sources":[{"name":"CVE","id":"CVE-2026-47235","modified":"2026-10-29T18:38:47.642Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-47235"}],"assessments":[{"source":"GitHub_M","vector":"CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L","score":7.5}],"sourceAffected":[],"observedAt":"2026-10-29T18:54:11.351Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T13:55:32.867Z"},"coverage":[{"source":"NVD","status":"no-result","checkedAt":"2026-10-28T16:10:33.202Z","attemptedAt":"2026-10-28T16:10:33.202Z"},{"source":"GHSA","status":"no-result","checkedAt":"2026-10-28T16:10:33.062Z","attemptedAt":"2026-10-28T16:10:33.062Z"},{"source":"EUVD","status":"available","checkedAt":"2026-10-28T16:10:32.793Z","attemptedAt":"2026-10-28T16:10:32.793Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-10-28T16:10:32.788Z","attemptedAt":"2026-10-28T16:10:32.788Z"}],"evidence":[{"source":"ENISA EUVD","id":"EUVD-2026-112147","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-112147","modified":"Oct 28, 2026, 3:38:21 PM","score":7.5,"vector":"CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L","checkedAt":"2026-10-28T16:10:32.793Z"}],"aiSummary":null}