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01 Record

CVE-2026-74233

Zbtlink MQWrt infosrvd Command Injection

CriticalPUBLISHEDCNA: VulnCheck
CNA base score9.3 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

02 Description

Zbtlink MQWrt infosrvd Command Injection

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
3.37% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 88.2% of scored records. A rank, not a probability.
NVD base score
9.3 (CVSS v4.0), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS: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
NVD analysis status
Deferred. NVD last modified this record on 2026-09-24.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-08-27 10:40Z2 MO AGO
Last updated
2026-08-27 13:41Z2 MO AGO
Reserved
2026-08-14
Assigning CNA
VulnCheck
Record state
PUBLISHED
Severity
Critical (CVSS 9.3)
CNA CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weaknesses
  • CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base
  • CWE-321Use of Hard-coded Cryptographic KeyVariant
Data version
5.2
Document digest
62787b93462949672b1222900ff71f93f9e2652c5cd1a94e91a5f8ce10718b98

05 Affected products

VendorProductVersionsPlatforms
ZbtlinkWE132619.1101—
ZbtlinkWE2426-C19.1112—
ZbtlinkWE35719.1101—
ZbtlinkWE592619.1101—
ZbtlinkWE5926-EC_QP20.0516—
ZbtlinkWE5926-WD19.1101—
ZbtlinkWE826-Q19.1101—
ZbtlinkWE826-T219.1101—
ZbtlinkWE826-WD19.1101—
ZbtlinkWF3526-P19.051—
ZbtlinkWG10819.1101—
ZbtlinkWG352619.1101—
UnknownCTN720-W119.1101—
UnknownLF-154119.1101—
UnknownMT7620N19.1101—
UnknownWRC120.0622—

06 References