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Heap-based Buffer OverflowWeakness · CWE-122

CVE-2026-24829

MEDIUM · 6.5 CVSS v3.1 Published 2026-01-27
Patch available
A vendor patch is available. No clean upgrade release — apply the published patch.
See remediation →
72/100
Remediation priority · Elevated
Remotely reachable No privileges Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Out-of-bounds Write, Heap-based Buffer Overflow vulnerability in Is-Daouda is-Engine.This issue affects is-Engine: before 3.3.4.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-122

Data overflows a buffer allocated on the heap, corrupting neighbouring heap structures and allocator metadata that a patient attacker can groom into control of execution. It is subtler than a stack overflow but just as dangerous. The fix is validating lengths before every write and using safe allocators and bounded operations.

General guidance for the heap-based buffer overflow class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Patch available Apply the vendor patch
Vendor patch github.com →
Recommended fix High confidence

is-Engine version 3.3.4 or later

  1. 1. Backup your current project and any custom configurations.
  2. 2. Locate the is-Engine library in your project dependencies (check your package manager or direct file inclusion).
  3. 3. Identify your current is-Engine version by checking the version header file or release tags.
  4. 4. If using a package manager (e.g., CMake, vcpkg, or similar), update to version 3.3.4 or later.
  5. 5. If using direct file inclusion, download is-Engine version 3.3.4 from the official GitHub repository: https://github.com/Is-Daouda/is-Engine/releases
  6. 6. Replace the old is-Engine files with the new version 3.3.4 files.
  7. 7. Rebuild and recompile your project to ensure the new library version is integrated.
  8. 8. Test your application thoroughly, focusing on any areas that use graphics rendering, sprite manipulation, or memory-intensive operations where the heap overflow occurred.

Generated from the published advisory — verify against the referenced sources before acting.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-24829 in production — separate from our analysis above.

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What this is

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