CVE-2007-5636

Nortel Networks UNIStim IP SoftPhone 2050 - RTCP Port Buffer Overflow

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Buffer overflow in the Nortel UNIStim IP Softphone 2050 allows remote attackers to cause a denial of service (application abort) and possibly execute arbitrary code via a flood of invalid characters to the RTCP port (5678/udp) that triggers a Windows error message, aka "extraneous messaging."

Desbordamiento de búfer en Nortel UNIStim IP Softphone 2050 permite a atacantes remotos provocar denegación de servicio (abortar aplicación) y posiblemente ejecutar código de su elección a través de una inundación de carácteres no válidos en el puerto RTCP (5678/udp) que dispara un mensaje de error Windows, también conocido como "mensaje extraño".

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2007-10-18 First Exploit
2007-10-23 CVE Reserved
2007-10-23 CVE Published
2024-08-07 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CAPEC

References (10)

URL	Tag	Source
http://osvdb.org/38521	Vdb Entry
http://securityreason.com/securityalert/3271	Third Party Advisory
http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=655203	X_refsource_confirm
http://www.securityfocus.com/archive/1/482476/100/0/threaded	Mailing List
http://www.vupen.com/english/advisories/2007/3540	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/37256	Vdb Entry

URL	Date	SRC
https://www.exploit-db.com/exploits/30678	2007-10-18
http://www.csnc.ch/static/advisory/csnc/nortel_UNIStim_IP_softphone_buffer-overflow_v1.0.txt	2024-08-07
http://www.securityfocus.com/bid/26118	2024-08-07

URL	Date	SRC

URL	Date	SRC
http://secunia.com/advisories/27252	2018-10-15

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Nortel Search vendor "Nortel"		Ip Softphone 2050 Search vendor "Nortel" for product "Ip Softphone 2050"				*		-		Affected