CVE-2007-0435
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 · uneditedT-Com Speedport 500V routers with firmware 1.31 allow remote attackers to bypass authentication and reconfigure the device via a LOGINKEY=TECOM cookie 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 confidenceThe T-Com Speedport 500V router with firmware 1.31 contains a hardcoded authentication bypass vulnerability. Attackers can bypass authentication and reconfigure the device by simply setting a LOGINKEY=TECOM cookie value in HTTP requests, indicating the authentication logic checks for a static client-side credential rather than proper server-side validation.
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 dataall versions= 1.31CVSS 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
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:L/Au:N/C:P/I:P/A:P
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 router modelAccess the router's web administration interface and check the device information page, or inspect the device label/packaging for the model number.Affected if The device is a T-Com Speedport 500v router.
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Check the firmware versionLog into the router's web interface and navigate to the status or system information page to view the installed firmware version.Affected if The firmware version is 1.31 or any version on a Speedport 500v router.
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Verify web management interface accessibilityDetermine if the router's HTTP administration interface (typically on ports 80 or 443) is reachable from network segments outside your trusted LAN, such as the internet or guest networks.Affected if The router's web management interface is exposed to untrusted networks.
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Test for hardcoded cookie bypassSend an HTTP request to the router's login page or any protected resource with the cookie header set to LOGINKEY=TECOM, and observe if authentication is bypassed.Affected if Setting the LOGINKEY=TECOM cookie allows access without valid credentials.
A user is affected if they operate a T-Com Speedport 500v router with firmware 1.31 (or any version) that has its web interface accessible, and the LOGINKEY=TECOM cookie bypasses authentication.
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 dataUpdate the router to the latest firmware version if available; otherwise replace the device with a supported model. Restrict access to the router's web management interface using firewall rules or network segmentation to limit exposure to untrusted networks.
- Consultation2.0 h
- Implementation3.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2007-0435 — 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-2007-0435 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
- No spam, self-promotion, credentials, or personal data