Mitel SIP Phones Argument Injection Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2025-02-12
• EPSS: 42% chance of exploitation in the next 30 days (higher than 99% of CVEs)

[ Description ]Official description

A vulnerability in the Mitel 6800 Series, 6900 Series, and 6900w Series SIP Phones, including the 6970 Conference Unit, through R6.4.0.HF1 (R6.4.0.136) could allow an authenticated attacker with administrative privilege to conduct an argument injection attack, due to insufficient parameter sanitization during the boot process. A successful exploit could allow an attacker to execute arbitrary commands within the context of the system.

CISA: Mitel 6800 Series, 6900 Series, and 6900w Series SIP Phones, including the 6970 Conference Unit, contain an argument injection vulnerability due to insufficient parameter sanitization during the boot process. Successful exploitation may allow an attacker to execute arbitrary commands within the context of the system.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 5 Mar 2025): Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• github.com/kwburns/CVE/blob/main/Mitel/6.3.0.1020/README.mdExploitThird Party Advisory
• www.mitel.com/support/security-advisoriesVendor Advisory
• www.mitel.com/support/security-advisories/mitel-product-security-advisory-24-0019Vendor Advisory
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource