cbcvebase.
CVE-2026-22679
published 2026-04-07

CVE-2026-22679: Weaver (Fanwei) E-cology 10.0 versions prior to 20260312 contain an unauthenticated remote code execution vulnerability in the…

PriorityP193critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
ITWVulnCheck KEV
Exploited in the wild
EPSS
21.48%
97.3th percentile
Weaver (Fanwei) E-cology 10.0 versions prior to 20260312 contain an unauthenticated remote code execution vulnerability in the /papi/esearch/data/devops/dubboApi/debug/method endpoint that allows attackers to execute arbitrary commands by invoking exposed debug functionality. Attackers can craft POST requests with attacker-controlled interfaceName and methodName parameters to reach command-execution helpers and achieve arbitrary command execution on the system. Exploitation evidence was first observed by the Shadowserver Foundation on 2026-03-31 (UTC).

Affected

2 ranges
VendorProductVersion rangeFixed in
weavere-cology< 2026031220260312
weaver_network_co_ltde-cology< 2026031220260312

Detection & IOCsextracted from sources · hover to see the quote

url/papi/esearch/data/devops/dubboApi/debug/method
filenamefanwei0324.msi
  • Detect unauthenticated POST requests targeting the vulnerable debug API endpoint; no authentication headers should precede exploitation.
  • Monitor for ping commands initiated by java.exe toward external callback infrastructure (Goby-linked), used by attackers to verify RCE capability.
  • Detect obfuscated and fileless PowerShell execution spawned from java.exe, used to repeatedly fetch remote scripts after initial payload drops failed.
  • Flag the presence or download of fanwei0324.msi on Weaver E-cology hosts as a high-confidence indicator of compromise.
  • ·The vulnerable debug endpoint is entirely removed in the patched build; the endpoint should not be accessible on patched systems (build 20260312 or later).
  • ·No alternative mitigations or workarounds exist; upgrading to build 20260312 or later is the only remediation path.
  • ·Exploitation requires no authentication and no input validation is performed on interfaceName and methodName parameters, meaning any network-accessible instance is at risk.

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv4.09.3CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vulncheck9.3CRITICAL
CVEs like this are exactly what “Exploited This Week” covers.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.