Vulnerability · Published Oct 12, 2021 · Assigned by talos

CVE-2021-21940

Critical 10.0

In plain English

A critical-severity heap buffer overflow in Anker. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 71% of all known vulnerabilities).

Severity (CVSS 3.0)10.0Critical

Exploit odds (30 days)1.3%top 28.7% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

A heap-based buffer overflow vulnerability exists in the pushMuxer processRtspInfo functionality of Anker Eufy Homebase 2 2.1.6.9h. A specially-crafted network packet can lead to a heap buffer overflow. An attacker can send a malicious packet to trigger this vulnerability.

Affected products (as reported)

Vendor	Product	Versions
n/a	Anker	Anker Eufy Homebase 2 2.1.6.9h

Weakness: CWE-122 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1369 x_refsource_MISC