Medium severity · published Sep 23, 2021
CVE-2021-22276
free@home System Access Point FW integrity check can be bypassed.
5.5
CVSS
0.3%
EPSS
No
On KEV
Description
The vulnerability allows a successful attacker to bypass the integrity check of FW uploaded to the free@home System Access Point.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 17% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SA
System Access Point · Busch-Jaeger
2CKA006220A0031 through 2.6.3; 2CKA006200A0154 through 2.6.3 · source: vendor
SA
System Access Point 127v Firmware · Abb
before 2.6.4 · source: NVD
SA
System Access Point 2.0 Firmware · Abb
before 2.6.4 · source: NVD
WA
Wl-system Access Point 127v Firmware · Abb
before 2.6.4 · source: NVD
WA
Wl-system Access Point 2.0 Firmware · Abb
before 2.6.4 · source: NVD
WA
Wl-system Access Point Firmware · Abb
before 2.6.4 · source: NVD