CVE-2009-0991

Unspecified vulnerability in the Listener component in Oracle Database 9.2.0.8, 9.2.0.8DV, 10.1.0...

5.0 MediumPublic exploit

Unspecified vulnerability in the Listener component in Oracle Database 9.2.0.8, 9.2.0.8DV, 10.1.0.5, 10.2.0.4, and 11.1.0.7 allows remote attackers to affect availability via unknown vectors, a different vulnerability than CVE-2009-1970.

Exploit likelihood

15.6%Up 5.8 points since Feb 4, 2022

What each source reports

NVD Score used 5.0

Record: CVE-2009-0991
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Updated: 2026-11-02

CVE List No score

Record: CVE-2009-0991
Updated: 2026-11-02

EUVDEUVD-2009-0988 No score

Record: EUVD-2009-0988
Updated: 2026-11-03

GitHub AdvisoriesGHSA-cfhm-pj55-pf52 No score

Unspecified vulnerability in the Listener component in Oracle Database 9.2.0.8, 9.2.0.8DV, 10.1.0...

Record: GHSA-cfhm-pj55-pf52
Updated: 2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	Oracle RDBms 10.2.0.3/11.1.0.6 - TNS Listener (PoC)	2009-04-21

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, Exploit-DB, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2009-0991 is a medium vulnerability (CVSS 5.0) in Oracle Database 10g, published April 15, 2009. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 15.6%, the 96th percentile. No source names a fixed version.