Application crash via RGB565 quantization overflow
Published Jan 27, 2026 · Updated Jan 27, 2026
Heap-based buffer overflow in Is Daouda is::Engine before 3.3.4 allows remote attackers to crash applications via crafted JPEG data. The bundled SDL2_jpeg decompressor enables two-pass color quantization for RGB565 output, causing prescan_quantize to process non-three-sample pixels as three samples and underflow or overflow its histogram array. Exploitation requires attacker-controlled JPEG data, RGB565 output, color quantization, and user interaction; the documented consequence is an application crash without data disclosure or modification.
Summary
What happened
Heap-based buffer overflow in Is Daouda is::Engine before 3.3.4 allows remote attackers to crash applications via crafted JPEG data. The bundled SDL2_jpeg decompressor enables two-pass color quantization for RGB565 output, causing prescan_quantize to process non-three-sample pixels as three samples and underflow or overflow its histogram array. Exploitation requires attacker-controlled JPEG data, RGB565 output, color quantization, and user interaction; the documented consequence is an application crash without data disclosure or modification.
The record
- CVE
- CVE-2026-24829
- Published
- Jan 27, 2026
- Updated
- Jan 27, 2026
- Vendor
- Is Daouda
- Product
- is::Engine
- Classifications
- CWE-122, CWE-787, T1204.002
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 27, 2026CVE publishedPublication date reported by the CVE source.
- Jan 27, 2026Record 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.
- Affected versionversion=0 <3.3.4
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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