A use-after-free vulnerability exists in the pushMuxer CreatePushThread functionality of Anker Eufy Homebase 2 2.1.6.9h. A specially-crafted set of network packets can lead to remote code execution.
Published 2021-10-12 14:15:08
Updated 2022-07-29 15:04:04
Source Talos
View at NVD,   CVE.org
Vulnerability category: Memory CorruptionExecute code

Products affected by CVE-2021-21941

Exploit prediction scoring system (EPSS) score for CVE-2021-21941

0.61%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 79 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-21941

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.8
MEDIUM AV:N/AC:M/Au:N/C:P/I:P/A:P
8.6
6.4
NIST
10.0
CRITICAL CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
3.9
6.0
Talos
9.0
CRITICAL CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
2.2
6.0
NIST

CWE ids for CVE-2021-21941

  • A product performs a series of non-atomic actions to switch between contexts that cross privilege or other security boundaries, but a race condition allows an attacker to modify or misrepresent the product's behavior during the switch.
    Assigned by: talos-cna@cisco.com (Secondary)
  • The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-21941

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