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CVE-2009-0991

29
FAUCET Score

CVE-2009-0991 describes an unspecified vulnerability within the Listener component of Oracle Database versions 9.2.0.8, 10.1.0.5, 10.2.0.4, and 11.1.0.7. This flaw allows remote attackers to impact system availability. With a CVSS score of 5.0, this vulnerability is easily exploitable over the network without authentication, leading to a partial denial of service. While not actively exploited in the wild, a proof-of-concept exploit exists on ExploitDB, and it has received no community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
10.1.0.5CPE matchmatch criteria
cpe:2.3:a:oracle:database_10g:10.1.0.5:*:*:*:*:*:*:*
10.2.0.4CPE matchmatch criteria
cpe:2.3:a:oracle:database_10g:10.2.0.4:*:*:*:*:*:*:*
11.1.0.7CPE matchmatch criteria
cpe:2.3:a:oracle:database_11g:11.1.0.7:*:*:*:*:*:*:*
9.2.0.8CPE matchmatch criteria
cpe:2.3:a:oracle:database_9i:9.2.0.8:*:*:*:*:*:*:*
9.2.0.8dvCPE matchmatch criteria
cpe:2.3:a:oracle:database_9i:9.2.0.8dv:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
7.58%
Probability of exploitation in next 30 days
EPSS Percentile
93.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-8507 · Apr 21, 2009
This CVE's current EPSS score of 0.0758 is in the 92nd percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

oraclepatch availablevia nvd_reference
View patch

References

osvdb.org / 53737
secunia.com / advisories/34693
exchange.xforce.ibmcloud.com / vulnerabilities/50026
oracle.com / technetwork/topics/security/cpuapr2009-099563.html
PatchVendor Advisory
securityfocus.com / bid/34461
Third Party AdvisoryVDB Entry
securitytracker.com / id
Third Party AdvisoryVDB Entry
us-cert.gov / cas/techalerts/TA09-105A.html
Third Party AdvisoryUS Government Resource