7.5

CVE-2021-33317: trendnet teg-30102ws_firmware NULL Pointer Dereference

CVSS: 7.5v3.1HighModified
Published 11-05-2022Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-33317 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in trendnet teg-30102ws_firmware. EPSS estimates a 0.93% chance of exploitation in the next 30 days, higher than 60.1% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
0.93%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 11-05-2022
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

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 metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

0.93%

Chance of exploitation in the next 30 days

Percentile

60%

Versus all other CVEs

30-day change

+0.01 pp

From 0.92% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.93%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Trendnet9 products

1 vendor · 9 products

References

1 links