---
title: "CVE-2026-47235: SimulationCraft - Buffer Overflow"
description: "SimulationCraft builds after release-820-01 and before simc-1205-01-516b5d7 contain a buffer overflow caused by improper bounds checking on the JSON sockets array in bcp_api.cpp, letting attackers with privileged network position execute arbitrary code via crafted .simc profiles or modified Battle.net API responses, exploit requires attacker to control input data."
url: https://panop.io/threat-heartbeat/CVE-2026-47235/
---

# CVE-2026-47235 SimulationCraft - Buffer Overflow

SimulationCraft builds after release-820-01 and before simc-1205-01-516b5d7 contain a buffer overflow caused by improper bounds checking on the JSON sockets array in bcp\_api.cpp, letting attackers with privileged network position execute arbitrary code via crafted .simc profiles or modified Battle.net API responses, exploit requires attacker to control input data.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-47235)

## Details

Type

Buffer Overflow

Impact

Remote Code Execution

CVSS 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Published

28 October 2026

Updated

29 October 2026

Weakness

[CWE-122](https://cwe.mitre.org/data/definitions/122.html)

## Vendor fix

Update to nightly build simc-1205-01-516b5d7 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-47235](https://nvd.nist.gov/vuln/detail/CVE-2026-47235)
- [https://github.com/simulationcraft/simc/commit/aff85992d284ca4621e784c6b065a271b22f629d](https://github.com/simulationcraft/simc/commit/aff85992d284ca4621e784c6b065a271b22f629d)
- [https://github.com/simulationcraft/simc/security/advisories/GHSA-wc9c-hfh3-phxx](https://github.com/simulationcraft/simc/security/advisories/GHSA-wc9c-hfh3-phxx)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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