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Fencer Vulns
critical 9.8

CVE-2022-29499 kev+ ransomware in the critical feed json

The Service Appliance component in Mitel MiVoice Connect through 19.2 SP3 allows remote code execution because of incorrect data validation.

published 2022-04-26 4 y ago modified 2026-08-06 3 mo ago also EUVD-2022-33836

cvss
9.8
version 3.1, CNA
cisa kev
Exploited
added 2022-06-27, used in ransomware
epss
55.2%
EPSS 55.2% chance of exploitation in 30 days, percentile 99%
public exploits
0
none known

Summary

The Service Appliance component in Mitel MiVoice Connect through 19.2 SP3 allows remote code execution because of incorrect data validation. The Service Appliances are SA 100, SA 400, and Virtual SA.

Patch / fix

cisa required action Apply updates per vendor instructions.

Timeline

  1. Published
  2. CISA SSVC: exploitation active
  3. Added to CISA KEV
  4. CISA patch deadline

Known exploited

Added
4 y ago
Patch by
2022-07-18 (4 y ago)
Ransomware
Known to be used in ransomware campaigns
Required action
Apply updates per vendor instructions.
Vendor, product
Mitel, MiVoice Connect
CISA name
Mitel MiVoice Connect Data Validation Vulnerability

Ransomware

Groups reported to have exploited it in intrusions.

  • Lorenz ransomware gang

reported by arcticwolf.com

Ransomware Vulnerability Matrix by BushidoUK (github.com/BushidoUK/Ransomware-Vulnerability-Matrix), reformatted per CVE. CC BY 4.0

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
yes
Technical impact
total
Assessed
4 y ago

Exploit prediction

55.24% chance of exploitation in the next 30 days, higher than 99% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.