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Exploited vulnerability · CISA KEV

Is CVE-2022-26871 exploited? Yes: in CISA KEV since 31 Mar 2022

Gociux · Trend Micro Apex Central · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2022-26871, Trend Micro Apex Central Arbitrary File Upload Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 31 Mar 2022, 2 days after it was published. It affects Trend Micro Apex Central. If you run it, CISA's required action is: Apply updates per vendor instructions.

exploitedYesCISA KEV · 31 Mar 2022
ransomwareNot knownno confirmed use
EPSStop 5%very likely to be exploited
severity9.8CVSS 3.1 · critical
US federal due21 Apr 2022BOD 22-01 deadline

What it is

An arbitrary file upload vulnerability in Trend Micro Apex Central could allow for remote code execution.

VendorTrend Micro (12 exploited CVEs in KEV)
ProductApex Central
VulnerabilityTrend Micro Apex Central Arbitrary File Upload Vulnerability
WeaknessCWE-184
Published29 Mar 2022
Added to KEV31 Mar 2022
Reported by (CNA)trendmicro

What to do

  1. Check whether you run it. Look for Apex Central in your asset inventory, including appliances and cloud images. Stack check lists every exploited Trend Micro 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 29 Mar 2022.
  4. Get told next time. Email alerts when CISA adds a CVE for Trend Micro.

References

Questions

Is CVE-2022-26871 being exploited?

Yes. CISA added CVE-2022-26871 to the Known Exploited Vulnerabilities catalog on 31 Mar 2022, which means there is reliable evidence of exploitation in the wild.

Is CVE-2022-26871 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2022-26871?

Apply updates per vendor instructions. Check Trend Micro's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Apex Central 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 March 2022 · Trend Micro scorecard · act-now radar.

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