CVE-2024-39275
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 · uneditedCookies of authenticated Advantech ADAM-5630 users remain as active valid cookies when a session is closed. Forging requests with a legitimate cookie, even if the session was terminated, allows an unauthorized attacker to act with the same level of privileges of the legitimate user.
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 confidenceThe Advantech ADAM-5630 IoT controller fails to invalidate authentication cookies upon session termination. Sessions remain active and exploitable even after users log out, allowing attackers with stolen cookies to impersonate legitimate users with full privileges.
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< 2.5.2CVSS 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
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 device firmware versionAccess the device web interface or use the vendor's management tool to view the firmware version information. This is typically found in System > Information or Settings > Device Info.Affected if The firmware version displayed is lower than 2.5.2 (e.g., 2.5.1, 2.4.x, or earlier)
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Log in to the device management interfaceAuthenticate to the ADAM-5630 web interface using valid credentials to establish an active session.Affected if This step establishes a baseline session for subsequent testing.
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Capture session cookies or tokensUsing browser developer tools or a network proxy, capture the session cookie(s) or authentication token assigned upon login. Note their values.Affected if You successfully retrieve session identifiers after authentication.
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Terminate the session via logoutClick the Logout or Sign Out button in the device interface to end the session normally.Affected if The logout process completes without error.
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Test if previous session remains validUsing the captured cookies from step 3, make an authenticated request to the device (e.g., access a protected page or API endpoint) without re-authenticating.Affected if The device accepts the old cookies and grants access, indicating the session was not properly invalidated after logout
The device is affected if the firmware version is below 2.5.2 AND the original session cookies remain valid and provide access after logging out.
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.
dbcve · scoped2.5.2
Apply vendor firmware patch when available; until then, implement network segmentation and consider additional authentication layers (e.g., VPN, MFA) to restrict access to the device management interface.
Adam 5630 Firmware 2.5.2
- Obtain firmware version 2.5.2 or later from the official Advantech support website (advantech.com)
- Back up the current device configuration before proceeding with the firmware update
- Access the ADAM-5630 device administrative interface and navigate to the firmware update section
- Upload and install firmware version 2.5.2 or later to the ADAM-5630 device
- After the firmware update completes, verify the device is running version 2.5.2 or later in the system information/settings
- Test session termination to confirm cookies are properly invalidated and no longer valid after logout
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 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 $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-39275 — 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-2024-39275 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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