Critical severity · published Oct 8, 2021
CVE-2021-35977
An issue was discovered in Digi RealPort for Windows through 4.8.488.0
9.8
CVSS
1.6%
EPSS
No
On KEV
Description
An issue was discovered in Digi RealPort for Windows through 4.8.488.0. A buffer overflow exists in the handling of ADDP discovery response messages. This could result in arbitrary code execution.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 75% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
6F
6350-sr Firmware · Digi
All versions, or not specified · source: NVD
CF
CM Firmware · Digi
All versions, or not specified · source: NVD
CE
Connect ES Firmware · Digi
All versions, or not specified · source: NVD
CL
Connectport Lts 8/16/32 Firmware · Digi
All versions, or not specified · source: NVD
CT
Connectport TS 8/16 Firmware · Digi
All versions, or not specified · source: NVD
OI
One IA Firmware · Digi
All versions, or not specified · source: NVD
OI
One Iap Family Firmware · Digi
All versions, or not specified · source: NVD
PI
Passport Integrated Console Server Firmware · Digi
All versions, or not specified · source: NVD
PT
Portserver TS Firmware · Digi
All versions, or not specified · source: NVD
PT
Portserver TS M Mei Firmware · Digi
All versions, or not specified · source: NVD
PT
Portserver TS Mei Firmware · Digi
All versions, or not specified · source: NVD
PT
Portserver TS Mei Hardened Firmware · Digi
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-35977
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-35977
Third Party Advisory
https://raw.githubusercontent.com/reidmefirst/vuln-disclosure/main/2021-02.txt
More from 6350-sr Firmware
9.8
CVE-2021-36767
In Digi RealPort through 4.10.490, authentication relies on a challenge-response mechanism that gives access to the server password, making the protection ineffective
8.1
CVE-2021-35979
An issue was discovered in Digi RealPort through 4.8.488.0