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Integer OverflowWeakness · CWE-190

CVE-2026-24830

CRITICAL · 9.8 CVSS v3.1 Published 2026-01-27
Patch available
A vendor patch is available. No clean upgrade release — apply the published patch.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click 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
Integer Overflow or Wraparound vulnerability in Ralim IronOS.This issue affects IronOS: before v2.23-rc2.

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 confidence

Integer overflow or wraparound vulnerability in Ralim IronOS firmware allows an attacker to cause arithmetic operations to wrap around, potentially leading to buffer overflows, memory corruption, or unexpected behavior. The vulnerability exists in versions before v2.23-rc2 and is rated critical due to potential for remote code execution or complete device compromise.

MitigationUpdate IronOS to version v2.23-rc2 or later to remediate this vulnerability. Review release notes for any configuration changes required after the update.

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
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 checks

Work through these to decide whether this CVE applies to you.

  1. Check IronOS firmware version on device
    Connect to the IronOS device via USB and query the firmware version using the device's debug mode or check the boot messages. Alternatively, if the device displays version info in its menu (typically under Device Info or Debug screens), note the displayed version number.
    Affected if The displayed version is earlier than v2.23-rc2 (e.g., v2.22, v2.21, or any version with a build date before the v2.23-rc2 release).
  2. Verify version string format
    If you have access to the firmware binary or build files, examine the version string embedded in the binary. Look for version tags or git commit hashes that can be mapped to the v2.23-rc2 milestone.
    Affected if The version string indicates a build prior to the v2.23-rc2 tag or commit.
  3. Identify if device supports firmware version display
    On the device itself, navigate to the system information or debug menu (often accessible by holding buttons during boot or through the settings). Confirm whether the firmware version is visible.
    Affected if The device shows any version number below v2.23-rc2, or displays a version that predates the release of v2.23-rc2.

A system is affected if the installed IronOS firmware version predates v2.23-rc2, as the integer overflow vulnerability exists in versions before this release.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 →
Interim mitigation

Update IronOS to version v2.23-rc2 or later to remediate this vulnerability. Review release notes for any configuration changes required after the update.

Recommended fix Moderate confidence

v2.23-rc2

  1. 1. Identify your current IronOS firmware version by checking the device boot screen or using the device's debug/info screen
  2. 2. Navigate to the official Ralim IronOS GitHub releases page at github.com/Ralim/IronOS/releases
  3. 3. Download the firmware file for v2.23-rc2 or a later stable release that includes the fix
  4. 4. Connect your soldering iron to a computer via USB (or the appropriate flashing method for your device - DFU, ST-Link, or Bluetooth flashing depending on model)
  5. 5. Use the IronOS flashing utility (e.g., Pinecil bluk or dfu-util) to flash the downloaded firmware to the device
  6. 6. After flashing completes, verify the device now shows v2.23-rc2 or later in the boot/version information

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

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation3.0 h
  • Testing4.0 h
  • Review / QA2.0 h
11.0 hours of engineering $1,900
Get the patch applied

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,040.

Scan for this in your stack

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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-2026-24830 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • 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
  • No spam, self-promotion, credentials, or personal data