CVE-2025-15155Public exploit

Process crash via negative pipeline buffer index

Published Dec 28, 2025 · Updated Dec 28, 2025

Stack-buffer underflow in floooh sokol allows local users to crash software built from the affected commit via a crafted pipeline descriptor. The _sg_pipeline_desc_defaults function checks buffer_index only against the upper limit, then uses a negative value to read four bytes before the stack-based auto_offset array. Reachability requires an embedding application to pass attacker-controlled pipeline state to sg_make_pipeline; the public harness demonstrates an AddressSanitizer-detected abort, not code execution.

CVSS severity7.8
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-buffer underflow in floooh sokol allows local users to crash software built from the affected commit via a crafted pipeline descriptor. The _sg_pipeline_desc_defaults function checks buffer_index only against the upper limit, then uses a negative value to read four bytes before the stack-based auto_offset array. Reachability requires an embedding application to pass attacker-controlled pipeline state to sg_make_pipeline; the public harness demonstrates an AddressSanitizer-detected abort, not code execution.

The record

CVE
CVE-2025-15155
Published
Dec 28, 2025
Updated
Dec 28, 2025
Vendor
floooh
Product
sokol
Classifications
CWE-121, CWE-787, CWE-119, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 28, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 28, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=16cbcc864012898793cd2bc57f802499a264ea40

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

floooh · sokolversion=16cbcc864012898793cd2bc57f802499a264ea40

Published CVSS scores

7.8NISTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.8VulDBCVSS: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
4.3VulDBAV:L/AC:L/Au:S/C:P/I:P/A:P
5.3VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
CWE-787Out-of-bounds Write
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1499Endpoint Denial of Service

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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