CVE-2023-52080
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 · uneditedIEIT NF5280M6 UEFI firmware through 8.4 has a pool overflow vulnerability, caused by improper use of the gRT->GetVariable() function. Attackers with access to local NVRAM variables can exploit this by modifying these variables on SPI Flash, resulting in memory data being tampered with. When critical data in memory data is tampered with,a crash may occur.
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 confidenceIEIT NF5280M6 UEFI firmware versions through 8.4 contain a pool overflow vulnerability stemming from improper use of the gRT->GetVariable() function. Attackers with local access to NVRAM variables can modify these variables on SPI Flash, causing memory data tampering that may lead to system crashes.
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
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/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 the server modelCheck the system for IEIT NF5280M6 label or use commands like 'dmidecode -s system-product-name' or check BMC/IPMI for system informationAffected if The system is not an IEIT NF5280M6 (different models have different firmware and may not be affected by this specific CVE)
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Retrieve UEFI firmware versionAccess UEFI/BIOS setup during boot and look for firmware version information, or use BMC/IPMI to query firmware version (e.g., 'ipmitool raw' or BMC web interface), or check /sys/firmware/efi on Linux if availableAffected if Unable to determine firmware version - cannot assess vulnerability status
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Compare firmware version to affected rangeNote the firmware version displayed (typically shown as a number like X.Y) and compare against the affected range: versions through 8.4 are vulnerableAffected if Firmware version is 8.4 or lower - the vulnerable gRT->GetVariable() code is present in these versions
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Verify NVRAM variable accessibilityCheck if NVRAM variables can be read/written via UEFI shell, Linux efivarfs (/sys/firmware/efi/efivars), or BMC-based NVRAM toolsAffected if NVRAM variables are accessible and readable - the prerequisite condition for exploiting the pool overflow exists; however, version check in step 3 is the primary indicator
The system is affected if it is an IEIT NF5280M6 server running UEFI firmware version 8.4 or lower, since the pool overflow vulnerability in gRT->GetVariable() exists in those versions.
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 dataApply the vendor-supplied firmware update to patch the pool overflow vulnerability in gRT->GetVariable(). Restrict physical and local access to NVRAM variables and SPI Flash to prevent exploitation.
- Consultation4.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,488.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-52080 — 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-2023-52080 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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