High severity · published Jul 29, 2020
CVE-2019-20030
An attacker with knowledge of the modem access number on a NEC UM8000 voicemail system may use SSH tunneling or standard Linux utilities to gain access to the system's LAN port
7.8
CVSS
0.3%
EPSS
No
On KEV
Description
An attacker with knowledge of the modem access number on a NEC UM8000 voicemail system may use SSH tunneling or standard Linux utilities to gain access to the system's LAN port. All versions are affected.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 27% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UF
Um8000 Firmware · Nec
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-20030
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-20030
Third Party Advisory
https://shadytel.su/files/nec_cve.txt
More from Um8000 Firmware
9.1
CVE-2019-20031
NEC UM8000, UM4730 and prior non-InMail voicemail systems with all known software versions may permit an infinite number of login attempts in the telephone user interface (TUI),…