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CVE-2009-0630

19
FAUCET Score

CVE-2009-0630 describes a denial-of-service vulnerability in various Cisco IOS features, including Unified Communications Manager Express, SIP Gateway, and Network Admission Control, across versions 12.0 through 12.4. The vulnerability stems from improper handling of IP sockets, allowing remote attackers to trigger an outage or resource exhaustion via specially crafted TCP packets. With a CVSS score of 7.1 (high), it requires medium attack complexity and can lead to a complete loss of availability. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage for this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
12.0CPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.0:*:*:*:*:*:*:*
12.0daCPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.0da:*:*:*:*:*:*:*
12.0dbCPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.0db:*:*:*:*:*:*:*
12.0dcCPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.0dc:*:*:*:*:*:*:*
12.0sCPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.0s:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.1HIGH

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.76%
Probability of exploitation in next 30 days
EPSS Percentile
75.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0176 is in the 34th percentile among its peer group of 8,920 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

secunia.com / advisories/34438
Vendor Advisory
securitytracker.com / id
exchange.xforce.ibmcloud.com / vulnerabilities/49418
cisco.com / en/US/products/products_security_advisory09186a0080a90469.shtml
Vendor Advisory
cisco.com / en/US/products/products_security_advisory09186a0080a904c6.shtml
Vendor Advisory
securityfocus.com / bid/34242
vupen.com / english/advisories/2009/0851
Vendor Advisory