Buffer overflow in Advantech Webaccess

CVE-2020-12002

Advantech WebAccess Node, Version 8.4.4 and prior, Version 9.0.0. Multiple stack-based buffer overflow vulnerabilities exist caused by a lack of proper validation of the length of user-supplied data, which may allow remote code execution.

Vulnerability class: Buffer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.091 (95.3th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 95.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2020-12002: held from 0.091 to 0.091.

EPSS over last 30 days · oldest: 0.091 · newest: 0.091 · change: 0.000

Affected products

  • Advantech Webaccess — versions 9.0.0
  • Advantech Webaccess Node — versions WebAccess Node Version 8.4.4 and prior, WebAccess Node Version 9.0.0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-12002?
CVE-2020-12002 is a critical-severity vulnerability in Advantech Webaccess, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2020-05-08.
How severe is CVE-2020-12002?
Critical severity. CVSS v3 base score is 9.8 out of 10.