Vulnerability · CVE-2001-0513
Oracle listener process on Windows NT redirects connection requests to another port and creates a separate thread to process the request, which allows remote attackers…
Published Jul 21, 2001 · catalog updated Jun 16, 2026 · Oracle
Check if you run it
No confirmed exploitation is on record for CVE-2001-0513. EPSS is 3.46%. Act only if a listed version of Oracle is installed.
Gaps on this record
- No version range is stored. A customer cannot check an installed version against this record.
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- Medium5.0
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 3.46%
- Remediation
- Advisory link
- Affected products
- cpe oracle/oracle9i
Oracle listener process on Windows NT redirects connection requests to another port and creates a separate thread to process the request, which allows remote attackers to cause a denial of service by repeatedly connecting to the Oracle listener but not connecting to the redirected port.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe oracle/oracle9iversion unspecified
How to fix CVE-2001-0513
Recommended remediation
A patch or advisory reference is linked. Open the original publisher for availability by product version.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2001-0513. EPSS is 3.46%. Act only if a listed version of Oracle is installed.
Which versions are affected?
Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 3.46%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Jul 21, 2001 · Oracle Critical Patch Updates
Detected
Oracle listener process on Windows NT redirects connection requests to another port and creates a separate thread to process the request, which allows remote attackers to cause a denial of service by repeatedly connecting to the Oracle listener but not connecting to the redirected port.
Jun 16, 2026 · Oracle Critical Patch Updates
Updated
Oracle listener process on Windows NT redirects connection requests to another port and creates a separate thread to process the request, which allows remote attackers to cause a denial of service by repeatedly connecting to the Oracle listener but not connecting to the redirected port.
Sources
- CVE.orgVulnerability recordCVE-2001-0513
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2001-0513
30-day exploitation probability 3.5%
first.org - Oracle Critical Patch UpdatesVendor advisoryCVE-2001-0513
Oracle listener process on Windows NT redirects connection requests to another port and creates a separate thread to process the request, which allows remote attackers to cause a denial of service by repeatedly connecting to the Oracle listener but not connecting to the redirected port.
nvd.nist.gov
References
Freshness
Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.