THREATPORT/VULNERABILITY/CVE-2021-27556
HIGH SEVERITY

CVE-2021-27556

Zentao vulnerability

CVSS
7.2
EPSS
4.0%
EPSS pct
89th
Exploited
No known
The Cron job tab in EasyCorp ZenTao 12.5.3 allows remote attackers (who have admin access) to execute arbitrary code by setting the type parameter to System.
Affected vendor
Easycorp
Affected product
Zentao
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-78 — OS Command Injection
Published
2021-08-31

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring high privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 4.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2021-27556

  • Confirm whether Easycorp Zentao is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2021-27556.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-27556

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-27556 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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