Vulnerability · Published Feb 4, 2022 · Assigned by talos
CVE-2021-21971
Low 3.7
In plain English
A low-severity out-of-bounds write in Sealevel. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities).
Severity (CVSS 3.0)3.7Low
Exploit odds (30 days)0.7%top 46.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
An out-of-bounds write vulnerability exists in the URL_decode functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. A specially-crafted MQTT payload can lead to an out-of-bounds write. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.
Affected products (as reported)
Weakness: CWE-787 · Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
References
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1406 x_refsource_MISC