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Exploited vulnerability · CISA KEV

Is CVE-2022-29499 exploited? Yes: in CISA KEV since 27 Jun 2022

Gociux · Mitel MiVoice Connect · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2022-29499, Mitel MiVoice Connect Data Validation Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 27 Jun 2022, 62 days after it was published. It is known to be used in ransomware campaigns. It affects Mitel MiVoice Connect. If you run it, CISA's required action is: Apply updates per vendor instructions.

exploitedYesCISA KEV · 27 Jun 2022
ransomwareKnownused in campaigns
EPSStop 1%among the most likely CVEs to be exploited
severity9.8CVSS 3.1 · critical
US federal due18 Jul 2022BOD 22-01 deadline

What it is

The Service Appliance component in Mitel MiVoice Connect allows remote code execution due to incorrect data validation.

VendorMitel (7 exploited CVEs in KEV)
ProductMiVoice Connect
VulnerabilityMitel MiVoice Connect Data Validation Vulnerability
WeaknessCWE-20
Published26 Apr 2022
Added to KEV27 Jun 2022
Reported by (CNA)mitre

What to do

  1. Check whether you run it. Look for MiVoice Connect in your asset inventory, including appliances and cloud images. Stack check lists every exploited Mitel CVE at once.
  2. Apply the fix. Apply updates per vendor instructions.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 26 Apr 2022.
  4. Get told next time. Email alerts when CISA adds a CVE for Mitel.

Other exploited CVEs in MiVoice Connect

References

Questions

Is CVE-2022-29499 being exploited?

Yes. CISA added CVE-2022-29499 to the Known Exploited Vulnerabilities catalog on 27 Jun 2022, which means there is reliable evidence of exploitation in the wild.

Is CVE-2022-29499 used in ransomware attacks?

Yes, CISA lists it as known to be used in ransomware campaigns.

How do I fix CVE-2022-29499?

Apply updates per vendor instructions. Check Mitel's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected MiVoice Connect and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in June 2022 · Mitel scorecard · act-now radar.

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