---
id: "CVE-2026-114598"
kind: "vulnerability"
aliases: ["CVE-2026-114598"]
title: "EPICS Base: network message length check lets reads overrun buffers"
severity: "high"
cvss: 8.7
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["epics", "industrial-control", "infrastructure", "scada", "self-hosted"]
not_affected_if: ["isolated-network", "no-network-exposure"]
published_at: "2026-10-27T17:16:59+00:00"
first_seen_at: "2026-10-27T17:32:46+00:00"
updated_at: "2026-10-27T17:34:24+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-114598", "first_seen_at": "2026-10-27T17:32:46+00:00"}]
---

# EPICS Base: network message length check lets reads overrun buffers

EPICS Base release 7.0.10 and earlier does not validate element or length values in a network message, so a crafted message can make the application read past an allocated buffer. An attacker can crash the service (denial of service) and may read adjacent memory contents.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed EPICS Base version against `7.0.10` (e.g. `grep -r "EPICS_VERSION" <epics-base>/configure/CONFIG_BASE_VERSION` or the `base` directory name)
- Note whether IOCs or gateways built on EPICS Base listen on the network (CA/PVA ports)

## Fix

- Move EPICS Base to a release newer than `7.0.10` (fixed version unknown from sources; check the EPICS Base release notes)
- Rebuild IOCs and gateways against the patched Base and restart them
- Restrict CA/PVA network access to trusted hosts until patched (unknown from sources, general mitigation)

## Timeline

- 2026-10-27T17:32:46+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-114598

## From the sources

In EPICS Base release 7.0.10 and prior, an insufficient validation of element or length values in a network message can cause the application to read beyond the bounds of an allocated buffer. This may lead to denial of service and could expose adjacent memory contents.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_