Buffer overflow in Hcc-Embedded Interniche
CVE-2021-31226
An issue was discovered in HCC embedded InterNiche 4.0.1. A potential heap buffer overflow exists in the code that parses the HTTP POST request, due to lack of size validation. This vulnerability requires the attacker to send a crafted HTTP POST request with a URI longer than 50 bytes. This leads to a heap overflow in wbs_post() via an strcpy() call.
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: 0.032 (87.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.032 · newest: 0.032 · change: 0.000
Affected products
- Hcc-Embedded Interniche — versions 4.0.1
Weakness classification (CWE)
References
- www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-foun… (Third Party Advisory, Mitigation)
- www.kb.cert.org/vuls/id/608209 (US Government Resource, Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2021-31226?
- CVE-2021-31226 is a critical-severity vulnerability in Hcc-Embedded Interniche, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2021-08-19.
- How severe is CVE-2021-31226?
- Critical severity. CVSS v3 base score is 9.8 out of 10.