Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessLocal access
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DeliveryCraft malicious shader descriptor with negative buffer_index
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ExploitCall _sg_pipeline_desc_defaults
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ExecutionStack buffer overflow
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PersistMemory corruption
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ImpactPotential code execution
Vulnerability Assessment
| Weakness |
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Bounds checking, buffer size validation
MITRE ATT&CK
2 techniques across 2 tactics: Execution, Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | The attacker must have local access to the system and be able to provide a shader pipeline descriptor with a negative |
| Impact | The CVSS 4.0 base score is 1.9 (low), reflecting the local attack vector and low privileges required. EPSS at 0.03% indicates minimal exploitation probability in the wild. The exploit is publicly available (POC), but no CISA KEV listing exists, suggesting low real-world risk. The SSVC decision would likely be 'low' exploitation status, 'automatable' only if the application processes untrusted shader descriptors, and 'medium' technical impact due to potential memory corruption. |
| Exploit ScenarioDerived | A local attacker with low privileges on a system runs an application that uses the sokol library and accepts a custom shader pipeline descriptor (e.g., via a configuration file or user input). The attacker supplies a descriptor with a negative |
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Alert meAnalysisAIv1 – Jul 27, 2026
Stack-based buffer overflow in the sokol graphics library's pipeline descriptor defaults function allows a local attacker with low privileges to trigger memory corruption. The vulnerability affects all versions up to commit 16cbcc864012898793cd2bc57f802499a264ea40, and a public exploit is available, though active exploitation has not been confirmed by CISA KEV.
RemediationAI
Apply the patch commit 5d11344150973f15e16d3ec4ee7550a73fb995e0 by updating the sokol library to the latest commit from the repository (https://github.com/floooh/sokol). The patch adds a lower-bound assertion to buffer_index, causing an abort if the index is negative. There is no workaround other than avoiding exposure to untrusted shader pipeline descriptors; applications that only use hardcoded or trusted shaders are not affected.
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Technical ContextAI · show details
The vulnerability resides in _sg_pipeline_desc_defaults within sokol_gfx.h, a component of sokol, a single-header cross-platform graphics library. The function copies default pipeline state and uses SOKOL_ASSERT to validate buffer_index against SG_MAX_VERTEXBUFFER_BINDSLOTS but lacks a lower-bound check, allowing a negative index to pass and cause a stack buffer overflow (CWE-119). The attack is local (AV:L) and requires low privileges (PR:L).
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Severity by source
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Local attack, low privileges, limited impact
Primary rating from Vendor (vuldb).
CVSS VectorVendor: vuldb
DescriptionCVE.org
A vulnerability was detected in floooh sokol up to 16cbcc864012898793cd2bc57f802499a264ea40. The impacted element is the function _sg_pipeline_desc_defaults in the library sokol_gfx.h. The manipulation results in stack-based buffer overflow. The attack requires a local approach. The exploit is now public and may be used. This product does not use versioning. This is why information about affected and unaffected releases are unavailable. The patch is identified as 5d11344150973f15e16d3ec4ee7550a73fb995e0. It is advisable to implement a patch to correct this issue.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.
Exploit-DB