How severe is CVE-2022-26871?

CVE-2022-26871 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-26871 being actively exploited?

Yes. CVE-2022-26871 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-03-31, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2022-26871?

CVE-2022-26871 primarily affects Trendmicro Apex Central. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-26871?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2022-26871 have an EU (EUVD) identifier?

Yes. CVE-2022-26871 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-31420. It is also flagged as exploited in the EUVD (since 2022-03-31).

When was CVE-2022-26871 published?

CVE-2022-26871 was published on 2022-03-29 and last updated on 2026-06-17.

CVE-2022-26871

CVE-2022-26871 is a critical-severity vulnerability in Trendmicro Apex Central with a CVSS 3.x base score of 9.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2022-03-31). The underlying weakness is classified as CWE-345.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 20% (97th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2022-03-31)
EU (EUVD) id: EUVD-2022-31420
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2022-03-31)
Weakness: CWE-345
Affected product: Trendmicro Apex Central
Published: 2022-03-29
Last modified: 2026-06-17

Description

An arbitrary file upload vulnerability in Trend Micro Apex Central could allow an unauthenticated remote attacker to upload an arbitrary file which could lead to remote code execution.

Frequently asked questions

What is CVE-2022-26871?: An arbitrary file upload vulnerability in Trend Micro Apex Central could allow an unauthenticated remote attacker to upload an arbitrary file which could lead to remote code execution.
How severe is CVE-2022-26871?: CVE-2022-26871 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-26871 being actively exploited?: Yes. CVE-2022-26871 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-03-31, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2022-26871?: CVE-2022-26871 primarily affects Trendmicro Apex Central. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-26871?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2022-26871 have an EU (EUVD) identifier?: Yes. CVE-2022-26871 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-31420. It is also flagged as exploited in the EUVD (since 2022-03-31).
When was CVE-2022-26871 published?: CVE-2022-26871 was published on 2022-03-29 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:trendmicro:apex_central:2019:-:*:*:*:*:*:*
cpe:2.3:a:trendmicro:apex_one:-:*:*:*:*:saas:*:*

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