What’s Vulnerable › Vulnerabilities

CVE-2018-25029

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-02-04 · updated 2026-06-17
• Weakness: CWE-757

Description

The Z-Wave specification requires that S2 security can be downgraded to S0 or other less secure protocols, allowing an attacker within radio range during pairing to downgrade and then exploit a different vulnerability (CVE-2013-20003) to intercept and spoof traffic.

Affected products

• Silabs Zgm130S037Hgn Firmware: s2
• Silabs Zgm2305A27Hgn Firmware: s2
• Silabs Zgm230Sb27Hgn Firmware: s2
• Silabs Zm5101 Firmware: s2
• Silabs Zm5202 Firmware: s2

References

• https://community.silabs.com/s/share/a5U1M000000knqNUAQ/updated-your-zwave-smart-locks-are-safe-and-secure
• https://www.pentestpartners.com/security-blog/z-shave-exploiting-z-wave-downgrade-attacks/
• https://community.silabs.com/s/share/a5U1M000000knqNUAQ/updated-your-zwave-smart-locks-are-safe-and-secure
• https://www.pentestpartners.com/security-blog/z-shave-exploiting-z-wave-downgrade-attacks/

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