Windows MobileOperating system · Microsoft

CVE-2007-0878

HIGH · 7.8 CVSS v2.0 Published 2007-02-12
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
87/100
Remediation priority · High
Remotely reachable No privileges Zero-click

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
Unspecified vulnerability in Microsoft Internet Explorer on Windows Mobile 5.0 allows remote attackers to cause a denial of service (loss of browser and other device functionality) via a malformed WML page, related to an "overflow state." NOTE: it is possible that this issue is related to CVE-2007-0685.

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

Denial of service vulnerability in Microsoft Internet Explorer on Windows Mobile 5.0 caused by malformed WML pages leading to an overflow state, causing loss of browser and device functionality. The vulnerability is remotely exploitable via malicious WML content.

MitigationSince Windows Mobile 5.0 is discontinued and no longer receives security updates, the primary mitigation is to avoid browsing untrusted WML pages and consider migrating to supported mobile 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
Windows MobileOperating system
Affected:= 5.0

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
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete

AV:N/AC:L/Au:N/C:N/I:N/A:C

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. Confirm Windows Mobile version
    Check the device system settings or boot loader information to verify the Windows Mobile version is exactly 5.0
    Affected if The device is running Windows Mobile version 5.0
  2. Identify the browser application
    Verify that Internet Explorer for Windows Mobile is installed as the default browser
    Affected if Internet Explorer for Windows Mobile is the active browser
  3. Determine WML rendering capability
    Check if the browser has WML rendering enabled or accessible. This may require viewing browser settings or examining the browser's MIME type handlers for text/vnd.wap.wml
    Affected if WML content rendering is enabled or accessible in the browser
  4. Test for malformed WML handling
    Attempt to load or parse a malformed WML page through the browser and observe for browser crash or device instability
    Affected if The browser crashes or becomes unresponsive when processing malformed WML content

The user is affected if the device runs Windows Mobile 5.0 with Internet Explorer for Windows Mobile and WML browsing capability is enabled or accessible.

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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Since Windows Mobile 5.0 is discontinued and no longer receives security updates, the primary mitigation is to avoid browsing untrusted WML pages and consider migrating to supported mobile platforms.

Fix this in Windows Mobile Scoped from the published advisory
  • Consultation1.0 h
  • Testing1.0 h
  • Review / QA1.0 h
3.0 hours of engineering $750
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2007-0878 — 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 sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2007-0878 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