7.8

CVE-2020-5131: sonicwall netextender Improper Input Validation

CVSS: 7.8v3.1HighModified
Published 17-07-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-5131 is a high (CVSS 7.8) Improper Input Validation vulnerability in sonicwall netextender. EPSS estimates a 0.46% chance of exploitation in the next 30 days, higher than 38.7% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.46%
0%100%
Low · -0.09 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 17-07-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

SonicWall NetExtender Windows client vulnerable to arbitrary file write vulnerability, this allows attacker to overwrite a DLL and execute code with the same privilege in the host operating system. This vulnerability impact SonicWall NetExtender Windows client version 9.0.815 and earlier.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

0.46%

Chance of exploitation in the next 30 days

Percentile

39%

Versus all other CVEs

30-day change

-0.09 pp

From 0.55% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.46%

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

Sonicwall2 products

1 vendor · 2 products

References

1 links