CVE-2026-37540
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 · uneditedOpenAMP v2025.10.0 ELF loader contains an integer overflow vulnerability in firmware image parsing. In elf_loader.c, it performs multiplication of two attacker-controlled 16-bit values from the ELF header without overflow checking. On 32-bit embedded systems (STM32MP1, Zynq, i.MX), large values can cause the product to wrap around to a small value.
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 · high confidenceOpenAMP v2025.10.0 ELF loader in elf_loader.c contains an integer overflow vulnerability during firmware image parsing. The code multiplies two attacker-controlled 16-bit values from the ELF header without validating for overflow, causing the product to wrap around to a small value on 32-bit embedded systems like STM32MP1, Zynq, and i.MX platforms.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 2025.10.0CVSS 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
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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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Identify OpenAMP installationLocate the OpenAMP library or firmware using the system package manager, build artifacts, or firmware binary analysis tools (e.g., 'dpkg -l | grep -i openamp', 'find / -name "*openamp*"', or check firmware filesystem dumps)Affected if OpenAMP version 2025.10.0 is found installed or embedded in the firmware
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Verify OpenAMP versionCheck the version of the installed OpenAMP library or linked binary. Inspect library files, build logs, or firmware metadata for the exact version string "2025.10.0"Affected if The installed version is exactly 2025.10.0
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Confirm ELF loader is in useIdentify whether the firmware or application invokes the elf_loader.c functionality. This may be evident from code references to elf_load(), elf_loader functions, or configuration enabling remote processor firmware loading via the ELF loader moduleAffected if The ELF loader module is compiled and actively used for parsing ELF firmware images
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Check target platformDetermine if the system runs on a 32-bit embedded platform (STM32MP1, Zynq, or i.MX series) by inspecting system information, device tree, or firmware build configurationAffected if The system is a 32-bit ARM embedded platform such as STM32MP1, Zynq, or i.MX
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Verify ELF header parsing occursMonitor or inspect firmware operations for ELF firmware image parsing. This includes loading firmware onto remote processors (e.g., via remoteproc subsystem) or any code path that reads ELF headers from untrusted sourcesAffected if The device parses ELF firmware images using the vulnerable elf_loader.c code path
You are affected if OpenAMP version 2025.10.0 is present and the ELF loader module is used to parse ELF firmware images on a 32-bit embedded platform (STM32MP1, Zynq, or i.MX).
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 dataImplement overflow validation by checking if the product of the two 16-bit values exceeds the maximum representable value before allocation or use, or validate input values against reasonable bounds defined by the ELF specification for the target system.
- Consultation2.0 h
- Implementation4.0 h
- Testing8.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-37540 — 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-2026-37540 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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