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Database ServerDatabase / datastore · Oracle

CVE-2007-5554

HIGH · 7.1 CVSS v2.0 Published 2007-10-18
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
80/100
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
Oracle allows remote attackers to obtain server memory contents via crafted packets, aka Oracle reference number 7892711. NOTE: as of 20071016, the only disclosure is a vague pre-advisory with no actionable information. However, since it is from a well-known researcher, it is being assigned a CVE identifier for tracking purposes.

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

Oracle database vulnerability allowing remote attackers to obtain server memory contents via specially crafted network packets. This is an information disclosure issue where malformed packets can cause the database to leak sensitive data from memory, potentially exposing session credentials, query results, or other in-memory sensitive information.

MitigationApply Oracle Critical Patch Updates (CPU) for the relevant timeframe (2007). If patching is not immediately feasible, restrict network access to database ports (typically 1521) using firewalls or network segmentation to limit exposure to untrusted networks.

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
Database ServerDatabase / datastore
Affected:all versions

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
M
Authentication
None
Confidentiality
Complete
Integrity
None
Availability
None

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

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 Oracle Database Server is installed
    Check for Oracle database binaries and processes: On Linux/Unix, run 'ps -ef | grep -i oracle' or look for $ORACLE_HOME directory. On Windows, check Services for Oracle-related services or look in C:\oracle or C:\app\oracle directories.
    Affected if Oracle Database Server software is present on the system
  2. Verify Oracle Listener is running and exposed
    Run 'lsnrctl status' to check listener status. Default Oracle listener runs on port 1521. Use 'netstat -an | grep 1521' or 'ss -tlnp | grep 1521' to confirm the listener is listening on a network interface.
    Affected if Oracle Listener is running and bound to a network-accessible IP address (0.0.0.0 or non-localhost)
  3. Determine network exposure of Oracle port
    Check firewall rules and network configuration. On Linux: 'iptables -L -n' or 'firewall-cmd --list-all'. On Windows: check Windows Firewall inbound rules. Identify if port 1521 (or custom Oracle port) is accessible from untrusted networks.
    Affected if Oracle database port is open to untrusted network segments or the internet without proper firewall restrictions
  4. Inspect listener.ora access controls
    Examine $ORACLE_HOME/network/admin/listener.ora for valid node or IP restrictions. Look for entries like VALID_NODE_CHECKING, INBOUND_CONNECT_TIMEOUT, or ADMIN_RESTRICTIONS settings.
    Affected if No node/IP-based access controls are configured in listener.ora, allowing unrestricted network access to the listener

A user is affected if Oracle Database Server with an exposed and unrestricted Oracle Listener is running on their system, as the vulnerability allows remote attackers to leak memory contents via malformed network packets.

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

Apply Oracle Critical Patch Updates (CPU) for the relevant timeframe (2007). If patching is not immediately feasible, restrict network access to database ports (typically 1521) using firewalls or network segmentation to limit exposure to untrusted networks.

Fix this in Database Server Scoped from the published advisory
  • Consultation8.0 h
  • Implementation16.0 h
  • Testing12.0 h
  • Review / QA4.0 h
40.0 hours of engineering $7,000
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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-2007-5554 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
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