Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2013-3453

20
FAUCET Score

CVE-2013-3453 describes a memory leak vulnerability in Cisco Unified Communications Manager IM and Presence Service (versions before 8.6(5)SU1 and 9.x before 9.1(2)) and Cisco Unified Presence. This flaw allows remote attackers to trigger a denial of service by making numerous TCP connections to ports 5060 or 5061, leading to excessive memory and CPU consumption. With a CVSS score of 7.8, this vulnerability is considered high severity, requiring no authentication and having low attack complexity, resulting in 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 regarding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 8.6\(4\)CPE matchmatch criteria
cpe:2.3:a:cisco:unified_communications_manager:*:*:*:*:*:*:*:*
3.3\(5\)CPE matchmatch criteria
cpe:2.3:a:cisco:unified_communications_manager:3.3\(5\):*:*:*:*:*:*:*
3.3\(5\)sr1CPE matchmatch criteria
cpe:2.3:a:cisco:unified_communications_manager:3.3\(5\)sr1:*:*:*:*:*:*:*
3.3\(5\)sr2aCPE matchmatch criteria
cpe:2.3:a:cisco:unified_communications_manager:3.3\(5\)sr2a:*:*:*:*:*:*:*
4.1\(3\)CPE matchmatch criteria
cpe:2.3:a:cisco:unified_communications_manager:4.1\(3\):*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.8HIGH

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.89%
Probability of exploitation in next 30 days
EPSS Percentile
77.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0189 is in the 61st percentile among its peer group of 51,551 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20130821-cup
Vendor Advisory