CVE-2018-25029
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.62%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 0.62% probability · 49th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-757
- Affected
- silabs/zgm130s037hgn firmware · silabs/zm5202 firmware · silabs/zm5101 firmware · silabs/zgm2305a27hgn firmware · silabs/zgm230sb27hgn firmware
- Source
- cret@cert.org
EPSS 0.6% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://community.silabs.com/s/share/a5U1M000000knqNUAQ/updated-your-zwave-smart-locks-are-safe-and-secureThird Party Advisory
- https://www.pentestpartners.com/security-blog/z-shave-exploiting-z-wave-downgrade-attacks/Exploit, Third Party Advisory
- https://community.silabs.com/s/share/a5U1M000000knqNUAQ/updated-your-zwave-smart-locks-are-safe-and-secureThird Party Advisory
- https://www.pentestpartners.com/security-blog/z-shave-exploiting-z-wave-downgrade-attacks/Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.