Kamailio AVP cxdx_avp.c get_4bytes out-of-bounds

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-82608
StatePUBLISHED
AssignerVulDB
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-31 03:16:43 UTC
Updated2026-08-31 03:16:43 UTC
DescriptionA vulnerability was determined in Kamailio up to 5.5.0/6.0.7. This affects the function get_4bytes of the file src/modules/ims_registrar_scscf/cxdx_avp.c of the component AVP Handler. Executing a manipulation can lead to out-of-bounds read. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized. This patch is called abb5d60af6eefbd367bf6588c5589566b090e272. It is advisable to implement a patch to correct this issue. The vendor points out, that "[v]ersion 5.5.0 is old and not maintained anymore."

Risk And Classification

Primary CVSS: v4.0 2.1 LOW from [email protected]

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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-125 | CWE-125 Out-of-Bounds Read | CWE-119 Memory Corruption

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary2.1LOWCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P/C...
4.0CNADECLARED5.3MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P
3.1[email protected]Primary7.4HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
3.1CNADECLARED7.4HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L/E:P/RL:O/RC:C
3.0CNADECLARED7.4HIGHCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L/E:P/RL:O/RC:C
2.0[email protected]Secondary6.5AV:N/AC:L/Au:S/C:P/I:P/A:P
2.0CNADECLARED6.5AV:N/AC:L/Au:S/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
Low
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:L/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
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low

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

CVSS v3.0 Breakdown

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

CVSS:3.0/AV:N/AC:L/PR:L/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 5.0 Not specified
CNA Na Kamailio affected 5.1 Not specified
CNA Na Kamailio affected 5.2 Not specified
CNA Na Kamailio affected 5.3 Not specified
CNA Na Kamailio affected 5.4 Not specified
CNA Na Kamailio affected 5.5.0 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

References

ReferenceSourceLinkTags
github.com/kamailio/kamailio [email protected] github.com
vuldb.com/vuln/397109/cti [email protected] vuldb.com
github.com/kamailio/kamailio/issues/4816 [email protected] github.com
vuldb.com/cve/CVE-2026-82608 [email protected] vuldb.com
github.com/Kamailio/Kamailio/pull/4823 [email protected] github.com
vuldb.com/submit/892903 [email protected] vuldb.com
vuldb.com/vuln/397109 [email protected] vuldb.com
github.com/Kamailio/Kamailio/commit/abb5d60af6eefbd367bf6588c5589566b090... [email protected] github.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: Hancl (VulDB User) (en)

CNA: VulDB CNA Team (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-08-30T00:00:00.000ZAdvisory disclosed
CNA2026-08-30T02:00:00.000ZVulDB entry created
CNA2026-08-30T09:39:36.000ZVulDB entry last update

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