CVE-2010-0903
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 · uneditedUnspecified vulnerability in the Net Foundation Layer component in Oracle Database Server 9.2.0.8, 10.1.0.5, 10.2.0.4, 11.1.0.7, and 11.2.0.1, when running on Windows, allows remote attackers to affect availability via unknown vectors.
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 confidenceUnspecified vulnerability in Oracle Database Server's Net Foundation Layer component on Windows platforms allows remote attackers to impact availability. The Net Foundation Layer handles Oracle network communications, and this flaw can be exploited remotely to cause denial of service. Affected versions span Oracle 9i through 11gR2 on Windows.
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= 9.2.0.8= 10.1.0.5= 10.2.0.4= 11.1.0.7= 11.2.0.1CVSS 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 checksWork through these to decide whether this CVE applies to you.
-
Verify Windows platformConfirm the operating system hosting the Oracle Database Server is Windows. This vulnerability only applies to Windows platforms.Affected if The Oracle Database Server is running on a non-Windows platform, then this CVE does not apply.
-
Identify installed Oracle Database versionRun the query 'SELECT VERSION FROM V$INSTANCE;' or check the Oracle inventory to determine the exact Oracle Database version installed.Affected if The installed version is exactly 9.2.0.8, 10.1.0.5, 10.2.0.4, 11.1.0.7, or 11.2.0.1 on Windows.
-
Confirm Oracle Net Listener is configuredCheck if the Oracle Net Listener (lsnrctl) is running and configured. Use 'lsnrctl status' command or check for listener.ora configuration file.Affected if The Net Foundation Layer handles Oracle network communications; if the listener is active and exposed to network, the vulnerability is reachable.
-
Verify network exposureReview Oracle Net configuration (listener.ora, sqlnet.ora) and firewall rules to determine if the Oracle listener is accessible from remote hosts.Affected if The Oracle listener is reachable from remote network segments, making the denial of service exploit viable.
A Windows-based Oracle Database Server running any of the affected versions (9.2.0.8, 10.1.0.5, 10.2.0.4, 11.1.0.7, or 11.2.0.1) with an exposed Oracle Net Listener is vulnerable to this denial of service flaw.
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 Oracle Critical Patch Updates (CPU) for the applicable version. Since this affects availability, schedule maintenance windows and ensure backups are in place before applying patches to production Oracle database instances on Windows.
- Consultation6.0 h
- Implementation12.0 h
- Testing10.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $8,928.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2010-0903 — 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-2010-0903 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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.
- 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