CVE-2025-11014: Ogre3d Buffer Overflow Vulnerability

CVE-2025-11014 Overview

CVE-2025-11014 is a heap-based buffer overflow vulnerability in OGRECave Ogre, an open-source 3D graphics rendering engine. The flaw affects versions up to 14.4.1 and resides in the STBIImageCodec::encode function within /ogre/PlugIns/STBICodec/src/OgreSTBICodec.cpp. Improper handling of image data during encoding leads to memory corruption on the heap. Exploitation requires local access, and a proof-of-concept has been published, increasing the likelihood of attempted exploitation against applications that link the vulnerable component.

Critical Impact
A local attacker with low privileges can trigger a heap-based buffer overflow in the Ogre image handler by supplying crafted input, potentially corrupting memory in the affected process.

Affected Products

OGRECave Ogre versions up to and including 14.4.1
The STBICodec plugin (OgreSTBICodec.cpp)
Applications embedding the affected Ogre Image Handler component

Discovery Timeline

2025-09-26 - CVE-2025-11014 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-11014

Vulnerability Analysis

The vulnerability is a heap-based buffer overflow classified under CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) and CWE-787 (Out-of-bounds Write). It is triggered inside the STBIImageCodec::encode routine in the Ogre STBICodec plugin, which wraps the stb_image library for image encoding operations.

When the encoder processes attacker-controlled image parameters, the routine writes beyond the bounds of an allocated heap buffer. This out-of-bounds write can corrupt adjacent heap metadata or application data structures in the process address space. The impact is bounded by local access requirements and low authenticated privileges, but a working proof-of-concept is publicly available through the project's GitHub issue tracker.

Root Cause

The root cause is missing or insufficient bounds validation on the image dimensions, pixel format, or buffer size arguments passed into STBIImageCodec::encode before writes are performed against the destination heap allocation. The encoder trusts caller-supplied metadata that does not match the actual output buffer size.

Attack Vector

Exploitation requires local access to a host running an application that uses the Ogre STBICodec plugin. An attacker supplies a crafted image or crafted encoding parameters to a process that invokes the vulnerable encoder. The result is heap memory corruption in the target process. See the published proof-of-concept archive referenced in the upstream issue for reproduction details.

Detection Methods for CVE-2025-11014

Indicators of Compromise

Unexpected crashes or SIGSEGV signals in processes that load the Ogre STBICodec plugin
Presence of untrusted or attacker-supplied image files in directories consumed by applications built on Ogre <= 14.4.1
Heap corruption diagnostics reported by memory allocator tooling during image encode operations

Detection Strategies

Inventory applications and games that statically or dynamically link against libOgreMain and the Codec_STBI plugin, and flag those on versions up to 14.4.1.
Run affected binaries under AddressSanitizer (ASan) in test environments to surface out-of-bounds writes in STBIImageCodec::encode.
Monitor endpoints for abnormal process termination events tied to Ogre-based applications when handling image inputs.

Monitoring Recommendations

Collect and centralize crash dumps for Ogre-based applications, then triage stack traces containing STBIImageCodec::encode frames.
Alert on new or modified image files placed in directories consumed by Ogre-linked services or tools.
Track file provenance for image assets used in build pipelines and content editors that rely on Ogre.

How to Mitigate CVE-2025-11014

Immediate Actions Required

Identify all software using OGRECave Ogre versions up to 14.4.1 and prioritize patching or upgrade.
Restrict local access to systems running Ogre-based applications until a fixed release is deployed.
Do not open untrusted image files with Ogre-based tools that invoke the STBICodec encoder.

Patch Information

No vendor advisory URL is listed in the NVD entry at the time of publication. Track the upstream GitHub issue #3445 for the fix commit and any tagged release beyond 14.4.1. Rebuild and redistribute downstream applications once a patched Ogre release is available.

Workarounds

Disable or remove the Codec_STBI plugin in plugins.cfg if the application does not require STBI-based image encoding.
Restrict image encoding operations to trusted, validated inputs only, and reject files from untrusted local users.
Apply operating system hardening such as non-executable heap and ASLR to reduce the impact of successful heap corruption.

bash

# Configuration example: disable the STBI codec plugin in plugins.cfg
# Comment out the STBICodec plugin line so Ogre does not load it at runtime
# Plugin=Codec_STBI