CVE-2025-2401
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 · uneditedBuffer overflow vulnerability in Immunity Debugger affecting version 1.85, its exploitation could allow a local attacker to execute arbitrary code, due to the lack of proper boundary checking.
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 · moderate confidenceBuffer overflow vulnerability in Immunity Debugger version 1.85 allows a local attacker to execute arbitrary code due to lack of proper boundary checking when processing input.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
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
- Local
- Complexity
- High
- Privileges
- Low
- Authentication
- X
- User interaction
- A
- Scope
- X
CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Confirm Immunity Debugger installationSearch the system for the Immunity Debugger executable (immunitydebugger.exe) using file search or check common installation directories such as C:\Program Files\Immunity Inc\Immunity Debugger or C:\Program Files (x86)\Immunity Inc\Immunity DebuggerAffected if The executable is found on the system, indicating Immunity Debugger is installed
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Identify installed versionRun Immunity Debugger and navigate to Help > About, or attempt to invoke the executable with a version flag if supported, to obtain the exact version numberAffected if The installed version is 1.85, matching the affected version stated in the CVE
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Verify version against affected rangeCompare the identified version against the affected version range. Since only version 1.85 is explicitly listed as affected, any version other than 1.85 is not covered by this specific CVEAffected if The installed version is exactly 1.85, making it the only version explicitly affected by this CVE
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Determine if tool processes external inputAssess whether Immunity Debugger is used to open, analyze, or debug files from untrusted sources such as downloaded executables, third-party binaries, or files from non-privileged usersAffected if The tool is used to process input files from untrusted or external sources, as the vulnerability triggers during input processing
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Check local access exposureEvaluate whether untrusted local users or processes have the ability to supply input to Immunity Debugger or to invoke the tool with crafted argumentsAffected if Local untrusted users or processes can interact with Immunity Debugger, enabling the buffer overflow attack vector
A system is affected if Immunity Debugger version 1.85 is installed and is used to process input files, particularly from untrusted sources, allowing a local attacker to trigger the buffer overflow.
Generated from the published advisory. Verify against your own configuration.
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.
From vendor dataUntil an official patch is released, restrict access to systems running Immunity Debugger, avoid processing untrusted files with the tool, and monitor for unusual behavior.
- Consultation2.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-2401 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-2401 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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