Out-of-bounds Read in Hcc-Embedded Nichestack Tcp\/ip
CVE-2020-25927
The DNS feature in InterNiche NicheStack TCP/IP 4.0.1 is affected by: Out-of-bounds Read. The impact is: a denial of service (remote). The component is: DNS response processing in function: dns_upcall(). The attack vector is: a specific DNS response packet. The code does not check whether the number of queries/responses specified in the DNS packet header corresponds to the query/response data available in the DNS packet.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.023 (82.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000
Affected products
- Hcc-Embedded Nichestack Tcp\/ip — versions 4.0.1
Weakness classification (CWE)
References
- www.iniche.com/source-code/networking-stack/nichestack.php (Broken Link)
- 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-2020-25927?
- CVE-2020-25927 is a high-severity vulnerability in Hcc-Embedded Nichestack Tcp\/ip, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2021-08-18.
- How severe is CVE-2020-25927?
- High severity. CVSS v3 base score is 7.5 out of 10.