CVE-2021-33023
published 2021-10-18CVE-2021-33023: Advantech WebAccess versions 9.02 and prior are vulnerable to a heap-based buffer overflow, which may allow an attacker to remotely execute code.
PriorityP355critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
2.21%
80.3th percentile
Advantech WebAccess versions 9.02 and prior are vulnerable to a heap-based buffer overflow, which may allow an attacker to remotely execute code.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| advantech | webaccess | <= 9.0.2 | — |
| advantech | webaccess | All – 9.02 | — |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
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CISA ICS
Advantech WebAccess
cisa_ics·2021-10-12·CVSS 9.8
[CRITICAL] Advantech WebAccess
## Archived Content In an effort to keep CISA.gov current, the archive contains outdated information that may not reflect current policy or programs.
ICS Advisory
##
Advantech WebAccess
Last RevisedOctober 12, 2021
Alert CodeICSA-21-285-02
## 1. EXECUTIVE SUMMARY
- CVSS v3 9.8
- ATTENTION: Exploitable remotely/low attack complexity
- Vendor: Advantech
- Equipment: WebAccess
- Vulnerabilities: Heap-based Buffer Overflow, Stack-based Buffer Overflow
## 2. RISK EVALUATION
Successful exploitation of these vulnerabilities could allow an attacker to gain remote code execution.
## 3. TECHNICAL DETAILS
## 3.1 AFFECTED PRODUCTS
The following versions of WebAccess, an HMI platform, are affected:
- WebAccess Versions 9.02 and prior
## 3.2 VU
GHSA
GHSA-qw3w-g5fj-98wc: Advantech WebAccess versions 9
ghsa_unreviewed·2022-05-24
CVE-2021-33023 [CRITICAL] CWE-122 GHSA-qw3w-g5fj-98wc: Advantech WebAccess versions 9
Advantech WebAccess versions 9.02 and prior are vulnerable to a heap-based buffer overflow, which may allow an attacker to remotely execute code.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-10-18
Published