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PatchSiren cyber security CVE debrief

CVE-2026-52022 Kamailio CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-09-01T18:17:43.243Z and has not been modified since then. The issue is in kamailio v.6.1.1 and before, allowing a remote attacker to cause a denial of service via the IMS P-CSCF registration handling components. This HIGH severity vulnerability has a CVSS score of 7.5. Affected deployments should verify configurations and consider compensating controls due to potential exposure. Defenders should review official advisories for specific guidance on mitigation and patching. The CVE Program and NVD records provide evidence for this issue.

Vendor
Kamailio
Product
kamailio
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-01
Original CVE updated
2026-09-04
Advisory published
2026-09-01
Advisory updated
2026-09-04

Who should care

Administrators and users of kamailio v.6.1.1 and before should be aware of this vulnerability and take necessary actions to mitigate the risk. This includes reviewing system configurations, monitoring for suspicious activity, and applying patches or updates provided by the vendor. Security teams should prioritize this vulnerability due to its HIGH CVSS score of 7.5 and potential for denial of service attacks. Vulnerability management and security operations teams should coordinate on response efforts and ensure that affected systems are identified and remediated promptly.

Technical summary

The CVE-2026-52022 vulnerability in kamailio v.6.1.1 and before allows a remote attacker to cause a denial of service via the IMS P-CSCF registration handling components. The vulnerability has a CVSS score of 7.5 and is classified as HIGH severity. It affects the IMS P-CSCF registration handling components of kamailio. Security teams should prioritize this vulnerability due to its HIGH CVSS score and potential for denial of service attacks. Administrators and users of kamailio v.6.1.1 and before should be aware of this vulnerability and take necessary actions to mitigate the risk.

Defensive priority

High-priority defensive actions are recommended due to the HIGH CVSS score of 7.5 and the potential for denial of service attacks.

Recommended defensive actions

  • Apply patches or updates provided by the vendor to address the vulnerability
  • Implement network segmentation and isolation to limit the attack surface
  • Monitor network traffic and system logs for suspicious activity
  • Consider implementing compensating controls, such as rate limiting or IP blocking

Evidence notes

The CVE-2026-52022 issue in kamailio v.6.1.1 and before allows a remote attacker to cause a denial of service via the IMS P-CSCF registration handling components. Evidence is based on official CVE Program and NVD records. Affected deployments should verify their configurations and consider compensating controls due to potential exposure. Defenders should review official advisories for specific guidance on mitigation and patching.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-52022 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-52022

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-52022 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-52022

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.