October 29, 2026

CVE Watchtower

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CVE-2026-74233NVD

Vulnerability Summary

Zbtlink WE1326, WE357, WE5926, WE5926-WD, WE826-Q, WE826-T2, WE826-WD, WG108, and WG3526 firmware 19.1101, Zbtlink WE2426-C firmware 19.1112, Zbtlink WE5926-EC_QP firmware 20.0516, Zbtlink WF3526-P firmware 19.051, CTN720-W1, LF-1541, and MT7620N firmware 19.1101, and WRC1 firmware 20.0622 contain an unauthenticated command injection in the infosrvd service (UDP/9992). A remote unauthenticated attacker can send a crafted UDP packet to execute arbitrary commands as root. The service's authentication uses a hardcoded salt and an all-zero wildcard MAC bypass, rendering it ineffective.
Severity Level
CRITICAL(9.8)
Published Date
Aug 27, 2026
Last Modified
Aug 27, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
3.37%Probability
Root Weakness (CWE)
CWE-321: Unknown/Unlisted Weakness ↗
Refer to the official MITRE database for detailed architectural specifications regarding this weakness.
CWE-78: OS Command Injection ↗
The software constructs all or part of an OS command using externally-influenced input, but does not properly neutralize special elements.
CVSS v4.0 Base Metrics — Score 9.3 (CRITICAL)
Attack VectorNetwork
Attack ComplexityLow
Attack RequirementsNone
Privileges RequiredNone
User InteractionNone
Confidentiality (Vulnerable System)High
Integrity (Vulnerable System)High
Availability (Vulnerable System)High
Confidentiality (Subsequent System)None
Integrity (Subsequent System)None
Availability (Subsequent System)None
CVSS v3.1 Base Metrics — Score 9.8 (CRITICAL)
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

Affected & Patched Versions

Affected Versions
  • Zbtlink WE1326 >= 19.1101
  • Zbtlink WE2426-C >= 19.1112
  • Zbtlink WE357 >= 19.1101
  • Zbtlink WE5926 >= 19.1101
  • Zbtlink WE5926-EC_QP >= 20.0516
  • Zbtlink WE5926-WD >= 19.1101
  • Zbtlink WE826-Q >= 19.1101
  • Zbtlink WE826-T2 >= 19.1101
  • Zbtlink WE826-WD >= 19.1101
  • Zbtlink WF3526-P >= 19.051
  • Zbtlink WG108 >= 19.1101
  • Zbtlink WG3526 >= 19.1101
  • Unknown CTN720-W1 >= 19.1101
  • Unknown LF-1541 >= 19.1101
  • Unknown MT7620N >= 19.1101
  • Unknown WRC1 >= 20.0622
Patched Versions
Not provided by cveorg for this CVE.
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🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
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External References