Kamailio Configuration File cfg.lex sr_push_yy_state use after free_CVE-2025-12205

4.8 / 10

MEDIUM

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Description

A vulnerability was detected in Kamailio 5.5. The affected element is the function sr_push_yy_state of the file src/core/cfg.lex of the component Configuration File Handler. The manipulation results in use after free. The attack must be initiated from a local position. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Basic Information

ID CVE-2025-12205

Source VulDB

Published Oct 27, 2025 at 02:32

Affected Product

Vendor n/a

Product Kamailio

Version 5.5

Affected Versions n/a Kamailio 5.5

CWE Classification

CWE-416 CWE-119

References

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    "lastseen": "",
    "description": "A vulnerability was detected in Kamailio 5.5. The affected element is the function sr_push_yy_state of the file src/core/cfg.lex of the component Configuration File Handler. The manipulation results in use after free. The attack must be initiated from a local position. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.",
    "published": "2025-10-27T02:32:07.777Z",
    "modified": "2025-10-27T02:32:07.777Z",
    "type": "cve",
    "title": "Kamailio Configuration File cfg.lex sr_push_yy_state use after free",
    "source": "VulDB",
    "references": "https://vuldb.com/?id.329875\nhttps://vuldb.com/?ctiid.329875\nhttps://vuldb.com/?submit.673225\nhttps://shimo.im/docs/ZzkLMVMLOzIRlpAQ/",
    "id": "CVE-2025-12205",
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    "cwe": [
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    "cvelist": null,
    "sourceData": "n/a Kamailio 5.5",
    "sourceHref": "",
    "cvss": {
        "score": 4.8,
        "severity": "MEDIUM",
        "vector": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
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        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
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        "privilegesRequired": "",
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        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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    "href": "",
    "category_name": "CVE",
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    "product": "Kamailio",
    "version": "5.5",
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