CVE-2026-28742Active Exploitation

LOWCVSS 9.2 · CRITICAL

Exploitation ongoing with high activity in latest observed window (1 mentions)

Immediate actions

  • Prioritize remediation for affected systems immediately
  • Assume compromise if assets are exposed
  • Track advisory updates for patch or workaround availability

Recommended action window: Immediate (within 24h)

NVD description

Naxclow devices use a uniform request-signing scheme based on a hard-coded, platform-wide salt embedded in every firmware image. Once this salt is recovered from any device, an attacker can generate valid signatures for arbitrary device or account operations due to the absence of per-device keys, server-side nonce tracking, or replay protections. Combined with the system’s use of plain HTTP for control-plane traffic, the construction enables broad request forgery and impersonation across the platform.

3.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-321

Priority

LOW

Exploitation

ACTIVE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • Active exploitation appears in 1 classified signals
  • 1 mentions across 1 observed day

What's happening

  • Active exploitation reported across 1 signal
  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-06-13: 1Active Exploitation · 2026-06-13: 106-13
Signal classification1 categories
Active Exploitation
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • VulDB 🛡@vuldb
    Active Exploitation

    A lot of offensive activities were identified targeting Naxclow Smart Doorbell X3 and other products (CVE-2026-28742) https://vuldb.com/vuln/370711/cti

    Post summary

    Cyber threat intelligence indicates multiple offensive operations targeting Naxclow Smart Doorbell X3 leveraging CVE-2026-28742, with no details on exploit code, patches, or technical specifics.

    0000046
    2.2K followersView on X

Explore more