Vulnerability in Mitel 6865i Sip
CVE-2022-29855
Mitel 6800 and 6900 Series SIP phone devices through 2022-04-27 have "undocumented functionality." A vulnerability in Mitel 6800 Series and 6900 Series SIP phones excluding 6970, versions 5.1 SP8 (5.1.0.8016) and earlier, and 6.0 (6.0.0.368) through 6.1 HF4 (6.1.0.165), could allow a unauthenticated attacker with physical access to the phone to gain root access due to insufficient access control for test functionality during system startup. A successful exploit could allow access to sensitive information and code execution.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (54.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.008 · change: +0.000
Affected products
Public proof-of-concept exploits
References
- www.mitel.com/support/security-advisories (Vendor Advisory)
- www.mitel.com/support/security-advisories/mitel-product-security-advisory-22-00… (Vendor Advisory)
- www.syss.de/pentest-blog/undocumented-functionality-backdoor-in-mitel-desk-phon… (Third Party Advisory)
- seclists.org/fulldisclosure/2022/Jun/32 (mailing-list, Exploit, Mailing List, Third Party Advisory)
- packetstormsecurity.com/files/167547/Mitel-6800-6900-Series-SIP-Phones-Backdoor… (Exploit, VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-29855?
- CVE-2022-29855 is a medium-severity vulnerability in Mitel 6865i Sip. CVSS score: 6.8/10. Published 2022-05-11.
- How severe is CVE-2022-29855?
- Medium severity. CVSS v3 base score is 6.8 out of 10.
- Is CVE-2022-29855 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.