A flaw has been found in Kamailio 5.5. The impacted element is the function rve_is_constant of the file src/core/rvalue.c. This manipulation causes null pointer dereference. The attack needs to be launched locally. The exploit has been published and may be used. It is still unclear if this vulnerability genuinely exists. This attack requires manipulating config files which might not be a realistic scenario in many cases. The vendor was contacted early about this disclosure but did not respond in any way.
References
| Link | Resource |
|---|---|
| https://shimo.im/docs/aBAYMVMB2jUP9jAj/ | Exploit Third Party Advisory |
| https://vuldb.com/?ctiid.329876 | Permissions Required VDB Entry |
| https://vuldb.com/?id.329876 | Third Party Advisory VDB Entry |
| https://vuldb.com/?submit.673240 | Third Party Advisory VDB Entry |
| https://www.openwall.com/lists/oss-security/2025/11/02/3 | |
| http://www.openwall.com/lists/oss-security/2025/10/27/12 | |
| http://www.openwall.com/lists/oss-security/2025/10/27/8 | |
| https://www.openwall.com/lists/oss-security/2025/10/27/8 | Issue Tracking Mailing List |
| https://shimo.im/docs/aBAYMVMB2jUP9jAj | Exploit Third Party Advisory |
Configurations
History
04 Nov 2025, 22:16
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|---|---|---|
| References |
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03 Nov 2025, 23:17
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| Summary | (en) A flaw has been found in Kamailio 5.5. The impacted element is the function rve_is_constant of the file src/core/rvalue.c. This manipulation causes null pointer dereference. The attack needs to be launched locally. The exploit has been published and may be used. It is still unclear if this vulnerability genuinely exists. This attack requires manipulating config files which might not be a realistic scenario in many cases. The vendor was contacted early about this disclosure but did not respond in any way. | |
| References |
|
28 Oct 2025, 15:05
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://shimo.im/docs/aBAYMVMB2jUP9jAj/ - Exploit, Third Party Advisory | |
| References | () https://vuldb.com/?ctiid.329876 - Permissions Required, VDB Entry | |
| References | () https://vuldb.com/?id.329876 - Third Party Advisory, VDB Entry | |
| References | () https://vuldb.com/?submit.673240 - Third Party Advisory, VDB Entry | |
| References | () https://www.openwall.com/lists/oss-security/2025/10/27/8 - Issue Tracking, Mailing List | |
| References | () https://shimo.im/docs/aBAYMVMB2jUP9jAj - Exploit, Third Party Advisory | |
| CPE | cpe:2.3:a:kamailio:kamailio:5.5.0:*:*:*:*:*:*:* | |
| First Time |
Kamailio kamailio
Kamailio |
28 Oct 2025, 14:15
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| References |
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28 Oct 2025, 01:16
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| References |
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27 Oct 2025, 03:15
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| New CVE |
Information
Published : 2025-10-27 03:15
Updated : 2025-11-04 22:16
NVD link : CVE-2025-12206
Mitre link : CVE-2025-12206
CVE.ORG link : CVE-2025-12206
JSON object : View
Products Affected
kamailio
- kamailio