Buffer overflow in Sealevel Seaconnect 370w
CVE-2021-21960
A stack-based buffer overflow vulnerability exists in both the LLMNR functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. A specially-crafted network packet can lead to remote code execution. An attacker can send a malicious packet to trigger this vulnerability.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.026 (85.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000
Affected products
- Sealevel Seaconnect 370w
- Sealevel Seaconnect 370w Firmware — versions 1.3.34
- Sealevel — versions Sealevel Systems, Inc. SeaConnect 370W v1.3.34
Weakness classification (CWE)
Public proof-of-concept exploits
References
- talosintelligence.com/vulnerability_reports/TALOS-2021-1389 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-21960?
- CVE-2021-21960 is a critical-severity vulnerability in Sealevel Seaconnect 370w, classified under Stack-based Buffer Overflow. CVSS score: 10.0/10. Published 2022-02-04.
- How severe is CVE-2021-21960?
- Critical severity. CVSS v3 base score is 10.0 out of 10.
- Is CVE-2021-21960 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.