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High severity · published May 11, 2022
CVE-2021-33317
The TRENDnet TI-PG1284i switch(hw v2.0R) prior to version 2.0.2.S0 suffers from a null pointer dereference vulnerability
7.5
CVSS
0.9%
EPSS
No
On KEV
Description
The TRENDnet TI-PG1284i switch(hw v2.0R) prior to version 2.0.2.S0 suffers from a null pointer dereference vulnerability. This vulnerability exists in its lldp related component. Due to fail to check if ChassisID TLV is contained in the packet, by sending a crafted lldp packet to the device, an attacker can crash the process due to null pointer dereference.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TF
Teg-30102ws Firmware · Trendnet
All versions, or not specified · source: NVD
TF
Ti-g102i Firmware · Trendnet
All versions, or not specified · source: NVD
TF
Ti-g160i Firmware · Trendnet
All versions, or not specified · source: NVD
TF
Ti-g642i Firmware · Trendnet
All versions, or not specified · source: NVD
TF
Ti-pg102i Firmware · Trendnet
All versions, or not specified · source: NVD
TF
Ti-pg1284i Firmware · Trendnet
before 2.0.2.s0 · source: NVD
TF
Ti-pg541i Firmware · Trendnet
All versions, or not specified · source: NVD
TF
Ti-rp262i Firmware · Trendnet
All versions, or not specified · source: NVD
TF
Tpe-30102ws Firmware · Trendnet
All versions, or not specified · source: NVD
Affected product
TF
Teg-30102ws Firmware
Trendnet
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-33317
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-33317
Patch
https://www.trendnet.com/support/view.asp?cat=4&id=81
More from Teg-30102ws Firmware
9.8
CVE-2021-33316
The TRENDnet TI-PG1284i switch(hw v2.0R) prior to version 2.0.2.S0 suffers from an integer underflow vulnerability
9.8
CVE-2021-33315
The TRENDnet TI-PG1284i switch(hw v2.0R) prior to version 2.0.2.S0 suffers from an integer underflow vulnerability