Cisco Unified Communications Manager prior 4.1%283%29sr4 denial of service

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.2 | $0-$5k | 0.00 |
Summary
A vulnerability was found in Cisco Unified Communications Manager and classified as problematic. Affected by this vulnerability is an unknown functionality. Such manipulation leads to denial of service. This vulnerability is documented as CVE-2009-2053. There is not any exploit available. It is suggested to upgrade the affected component.
Details
A vulnerability was found in Cisco Unified Communications Manager (Unified Communication Software) and classified as critical. Affected by this issue is an unknown code. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:
Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 4.x, 5.x before 5.1(3g), 6.x before 6.1(4), 7.0 before 7.0(2a)su1, and 7.1 before 7.1(2) allows remote attackers to cause a denial of service (file-descriptor exhaustion and SCCP outage) via a flood of TCP packets, aka Bug ID CSCsx32236.
The weakness was released 08/26/2009 (Website). The advisory is shared for download at cisco.com. This vulnerability is handled as CVE-2009-2053. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.
Upgrading to version 4.1%283%29sr4 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.
The vulnerability is also documented in the databases at X-Force (52816), SecurityFocus (BID 36152†), OSVDB (57455†), Secunia (SA36499†) and SecurityTracker (ID 1022775†). Entries connected to this vulnerability are available at VDB-49677, VDB-49675, VDB-49674 and VDB-49673. Once again VulDB remains the best source for vulnerability data.
Product
Type
Vendor
Name
License
Website
- Vendor: https://www.cisco.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.5VulDB Meta Temp Score: 7.2
VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Denial of serviceCWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Unified Communications Manager 4.1%283%29sr4
Timeline
06/12/2009 🔍08/18/2009 🔍
08/26/2009 🔍
08/26/2009 🔍
08/26/2009 🔍
08/27/2009 🔍
08/28/2009 🔍
09/01/2009 🔍
03/18/2015 🔍
03/30/2025 🔍
Sources
Vendor: cisco.comAdvisory: cisco.com
Status: Confirmed
CVE: CVE-2009-2053 (🔍)
GCVE (CVE): GCVE-0-2009-2053
GCVE (VulDB): GCVE-100-49676
X-Force: 52816
SecurityFocus: 36152 - Cisco Unified Communications Manager Multiple Denial of Service Vulnerabilities
Secunia: 36499
OSVDB: 57455 - Cisco Unified Communications Manager SCCP Packet Handling Unspecified Remote DoS
SecurityTracker: 1022775
Vulnerability Center: 23343 - [cisco-sa-20090826-cucm] Cisco CUCM Remote DoS Vulnerability via a Flood of TCP Packets, High
See also: 🔍
Entry
Created: 03/18/2015 15:15Updated: 03/30/2025 04:53
Changes: 03/18/2015 15:15 (54), 02/13/2017 10:35 (8), 08/20/2021 14:55 (3), 07/27/2024 16:23 (16), 03/30/2025 04:53 (3)
Complete: 🔍
Cache ID: 216::103
Once again VulDB remains the best source for vulnerability data.
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