CVE-2022-40740

HIGHCVSS 7.2/10EPSS 1.47%

Last modified

CVE-2022-40740 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. Realtek GPON router has insufficient filtering for special characters. A remote attacker authenticated as an administrator can exploit this vulnerability to perform command injection attacks, to execute arbitrary system command, manipulate system or disrupt service.. EPSS estimates a 1.47% chance of exploitation in the next 30 days.

Description

Realtek GPON router has insufficient filtering for special characters. A remote attacker authenticated as an administrator can exploit this vulnerability to perform command injection attacks, to execute arbitrary system command, manipulate system or disrupt service.

Metrics

CVSS 3.1
7.2/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
1.47%

70.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
RealtekUsdk1.0
RealtekUsdk2.0
RealtekUsdk2.2
RealtekXpon Software Development Kit1.9
RealtekXpon Software Development Kit3.3
RealtekXpon Software Development Kit4.0
RealtekXpon Software Development Kit4.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-40740?
Realtek GPON router has insufficient filtering for special characters. A remote attacker authenticated as an administrator can exploit this vulnerability to perform command injection attacks, to execute arbitrary system command, manipulate system or disrupt service.
How severe is CVE-2022-40740?
CVE-2022-40740 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 1.47% probability of exploitation in the next 30 days.
How do I fix CVE-2022-40740?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-40740?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST