November 4, 2026

CVE Watchtower

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CVE-2026-18330NVD

Vulnerability Summary

A hard-coded
cryptographic key vulnerability exists in TP-Link RE305 V3 and Archer C7 V5.
The same RSA-1024 private key is stored within firmware configuration files and
reused across devices. An attacker who obtains the private key and captures an
HTTP Web UI login session may use the key to decrypt the administrator
password. 





Successful
exploitation may disclose the administrator password captured from an HTTP
login session and compromise session confidentiality.
Severity Level
MEDIUM(6.1)
Published Date
Sep 3, 2026
Last Modified
Oct 27, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.33%Probability
Root Weakness (CWE)
CWE-321: Unknown/Unlisted Weakness ↗
Refer to the official MITRE database for detailed architectural specifications regarding this weakness.
CVSS v4.0 Base Metrics — Score 6.1 (MEDIUM)
Attack VectorAdjacent
Attack ComplexityLow
Attack RequirementsPresent
Privileges RequiredNone
User InteractionNone
Confidentiality (Vulnerable System)High
Integrity (Vulnerable System)Low
Availability (Vulnerable System)Low
Confidentiality (Subsequent System)None
Integrity (Subsequent System)None
Availability (Subsequent System)None

Affected & Patched Versions

Affected Versions
  • TP-Link Systems Inc. RE305 v3 < 1.1.8 Build 20260921 Rel. 42853
  • TP-Link Systems Inc. Archer C7 v5 < 1.3.1 Build 20260821 Rel. 41256
Patched Versions
  • TP-Link Systems Inc. RE305 v3 1.1.8 Build 20260921 Rel. 42853
  • TP-Link Systems Inc. Archer C7 v5 1.3.1 Build 20260821 Rel. 41256
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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.
🚫Ad-Free — Uninterrupted experience.

External References