CVE-2025-12205

LOW EPSS 10.8%
Published Oct 27, 20258mo ago · Modified Jun 17, 20262w ago
1.9 CVSS 4.0
Low
Find Similar
Published Oct 27, 2025 8mo ago
Last Modified Jun 17, 2026 2w ago

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 real existence of this vulnerability is still doubted at the moment. 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.

CVSS Details

Base Score
1.9
Exploitability
—
Impact
—
Vector string
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/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
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
10.8% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 2

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer Memory Safety
CWE-416 Use After Free Memory Safety

Affected Products 1

VendorProductVersionRange
kamailiokamailio5.5.0any

References 8

  • openwall.com http://www.openwall.com/lists/oss-security/2025/10/27/12
  • openwall.com http://www.openwall.com/lists/oss-security/2025/10/27/8
  • shimo.im https://shimo.im/docs/ZzkLMVMLOzIRlpAQ/
    ExploitThird Party Advisory
  • vuldb.com https://vuldb.com/?ctiid.329875
    Permissions RequiredVDB Entry
  • vuldb.com https://vuldb.com/?id.329875
    Third Party AdvisoryVDB Entry
  • vuldb.com https://vuldb.com/?submit.673225
    Third Party AdvisoryVDB Entry
  • openwall.com https://www.openwall.com/lists/oss-security/2025/10/27/8
    Issue TrackingMailing List
  • openwall.com https://www.openwall.com/lists/oss-security/2025/11/02/3

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.