10

CVE-2022-29499: Mitel MiVoice Connect Data Validation Vulnerability

KEVRansomware
Analyzed
Published 26-04-2022Last modified 06-08-2026

Vulnerability summary

CVE-2022-29499 is a high (CVSS 10.0) Improper Input Validation vulnerability in Mitel MiVoice Connect. It is known to be exploited: CISA lists it, first on 27-06-2022. It has been used in ransomware campaigns. EPSS estimates a 55.24% chance of exploitation in the next 30 days, higher than 99% of scored vulnerabilities.

Priority
Act nowransomware

Known ransomware use (CISA, 27-06-2022)

Source freshness unavailable

How is this decided?
CVSS score
10.0/10
010
High · v2.0 (NVD)
EPSS score
55.24%
0%100%
Critical · 0.00 pp in 30 days
KEVExploited in the wildCritical · listed in 1 catalog
RansomwareKnown useFlagged by CISA
Public exploits0No public exploits recorded

Timeline

  1. 26-04-2022
    PublishedVulnerability first disclosed.
  2. 27-06-2022
    Added to CISA KEVExploitedMitel MiVoice Connect Data Validation Vulnerability
  3. 18-07-2022
    CISA remediation dueDeadline passedApply updates per vendor instructions.
  4. 06-08-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

55.24%

Chance of exploitation in the next 30 days

Percentile

99%

Versus all other CVEs

30-day change

No change 0.00 pp

From 55.24% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
27-06-2022
Federal due date
18-07-2022
Ransomware
ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

CISA required action

Apply updates per vendor instructions. nvd.nist.gov/vuln/detail/CVE-2022-29499

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Mitel1 product

1 vendor · 1 product

References

2 links