EUVD-2026-83743
GHSA-w7rq-j77x-pqp7
Severity by source
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Crafted BMP delivered remotely but victim must open it (UI:R) and exploitation is difficult (AC:H); impact is a decoder crash only, so A:L with C:N/I:N.
Primary rating from Vendor (VulDB).
CVSS VectorVendor: VulDB
Lifecycle Timeline
4DescriptionCVE.org
A security vulnerability has been detected in SerenityOS up to 3d83e4509fd20d7438e1ae8470ffe668c136229c. Affected by this vulnerability is the function decode_bmp_pixel_data of the file Userland/Libraries/LibGfx/ImageFormats/BMPLoader.cpp of the component LibGfx. The manipulation of the argument height leads to integer overflow. The attack is possible to be carried out remotely. The attack's complexity is rated as high. The exploitation appears to be difficult. The exploit has been disclosed publicly and may be used. This product adopts a rolling release strategy to maintain continuous delivery. Therefore, version details for affected or updated releases cannot be specified. The identifier of the patch is 007041bb2dd6d140c9e707caddfb0a49ecf96469. Applying a patch is the recommended action to fix this issue. This was reproducible with a minimal 55-byte PoC via the standard image-decode fuzz target but evidence for an actual exploitable defect is thin.
AnalysisAI
Signed 32-bit integer overflow in SerenityOS LibGfx's BMP decoder can crash the decoder when a victim opens a crafted BMP whose height field is INT32_MIN, affecting BMPLoader.cpp's decode_bmp_pixel_data and related DIB parsing. Publicly available exploit code exists, but exploitation requires user interaction and high complexity, and the realistic impact is minor availability loss only, with no code execution or data disclosure demonstrated. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a SerenityOS user to open or decode an attacker-crafted BMP image whose height field triggers a signed 32-bit integer overflow in LibGfx's decode_bmp_pixel_data (specifically the INT32_MIN edge case the patch now rejects). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a low-priority issue whose CVSS 4.0 score of 2.3 is honest. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upstream fix available (PR/commit); released patched version not independently confirmed. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-190 – Integer Overflow or Wraparound
View allSame technique Denial Of Service
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External POC / Exploit Code
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