Kamailio CDP Diameter Receiver receiver.c shm_malloc heap-based overflow

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-93962
StatePUBLISHED
AssignerVulDB
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-20 05:16:29 UTC
Updated2026-09-20 05:16:29 UTC
DescriptionA weakness has been identified in Kamailio up to 5.8.8/6.0.7/6.1.4/6.2.0-dev1. The impacted element is the function shm_malloc of the file src/modules/cdp/receiver.c of the component CDP Diameter Receiver. Executing a manipulation can lead to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 6.0.8 is sufficient to resolve this issue. This patch is called 38711a3e788de0130d48cb485578c482b57d9351/4f62235b6f477b649c5cc18b0c81b4e26c949b98/4f62235b6f477b649c5cc18b0c81b4e26c949b98. You should upgrade the affected component.

Risk And Classification

Primary CVSS: v4.0 5.5 MEDIUM from [email protected]

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-119 | CWE-122 | CWE-122 Heap-based Buffer Overflow | CWE-119 Memory Corruption

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary5.5MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P/C...
4.0CNADECLARED6.9MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P
3.1[email protected]Primary8.3HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
3.1CNADECLARED8.3HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L/E:P/RL:O/RC:C
3.0CNADECLARED8.3HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L/E:P/RL:O/RC:C
2.0[email protected]Secondary7.5AV:N/AC:L/Au:N/C:P/I:P/A:P
2.0CNADECLARED7.5AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Sub Conf.
Low
Sub Integrity
Low
Sub Availability
Low

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L/E:P/RL:O/RC:C

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na Kamailio affected 5.8.0 Not specified
CNA Na Kamailio affected 5.8.1 Not specified
CNA Na Kamailio affected 5.8.2 Not specified
CNA Na Kamailio affected 5.8.3 Not specified
CNA Na Kamailio affected 5.8.4 Not specified
CNA Na Kamailio affected 5.8.5 Not specified
CNA Na Kamailio affected 5.8.6 Not specified
CNA Na Kamailio affected 5.8.7 Not specified
CNA Na Kamailio affected 5.8.8 Not specified
CNA Na Kamailio affected 6.0.0 Not specified
CNA Na Kamailio affected 6.0.1 Not specified
CNA Na Kamailio affected 6.0.2 Not specified
CNA Na Kamailio affected 6.0.3 Not specified
CNA Na Kamailio affected 6.0.4 Not specified
CNA Na Kamailio affected 6.0.5 Not specified
CNA Na Kamailio affected 6.0.6 Not specified
CNA Na Kamailio affected 6.0.7 Not specified
CNA Na Kamailio affected 6.1.0 Not specified
CNA Na Kamailio affected 6.1.1 Not specified
CNA Na Kamailio affected 6.1.2 Not specified
CNA Na Kamailio affected 6.1.3 Not specified
CNA Na Kamailio affected 6.1.4 Not specified
CNA Na Kamailio affected 6.2.0-dev1 Not specified
CNA Na Kamailio unaffected 6.0.8 Not specified

References

ReferenceSourceLinkTags
vuldb.com/vuln/407921/cti [email protected] vuldb.com
github.com/kamailio/kamailio [email protected] github.com
github.com/kamailio/kamailio/commit/38711a3e788de0130d48cb485578c482b57d... [email protected] github.com
vuldb.com/cve/CVE-2026-93962 [email protected] vuldb.com
github.com/kamailio/kamailio/pull/4877 [email protected] github.com
vuldb.com/submit/944244 [email protected] vuldb.com
github.com/kamailio/kamailio/releases/tag/6.0.8 [email protected] github.com
github.com/kamailio/kamailio/issues/4876 [email protected] github.com
vuldb.com/vuln/407921 [email protected] vuldb.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: WeiYi (VulDB User) (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-09-19T00:00:00.000ZAdvisory disclosed
CNA2026-09-19T02:00:00.000ZVulDB entry created
CNA2026-09-19T11:28:39.000ZVulDB entry last update

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report