CVE-2020-12022
An improper validation vulnerability exists that could allow an attacker to inject specially crafted input into memory where it can be executed.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.67%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Advantech WebAccess Node, Version 8.4.4 and prior, Version 9.0.0. An improper validation vulnerability exists that could allow an attacker to inject specially crafted input into memory where it can be executed.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.67% probability · 77th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-129
- Affected
- advantech/webaccess
- Source
- ics-cert@hq.dhs.gov
EPSS 1.7% since 26 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://www.us-cert.gov/ics/advisories/icsa-20-128-01Third Party Advisory, US Government Resource
- https://www.zerodayinitiative.com/advisories/ZDI-20-598/Third Party Advisory
- https://www.us-cert.gov/ics/advisories/icsa-20-128-01Third Party Advisory, US Government Resource
- https://www.zerodayinitiative.com/advisories/ZDI-20-598/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.