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CVE-2021-20091

HIGHCVSS 8.8/10EPSS 8.69%

Last modified

CVE-2021-20091 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. The web interfaces of Buffalo WSR-2533DHPL2 firmware version <= 1.02 and WSR-2533DHP3 firmware version <= 1.24 do not properly sanitize user input. An authenticated remote attacker could leverage this vulnerability to alter device configuration, potentially gaining remote code execution.. EPSS estimates a 8.69% chance of exploitation in the next 30 days.

Description

The web interfaces of Buffalo WSR-2533DHPL2 firmware version <= 1.02 and WSR-2533DHP3 firmware version <= 1.24 do not properly sanitize user input. An authenticated remote attacker could leverage this vulnerability to alter device configuration, potentially gaining remote code execution.

Metrics

CVSS 3.1
8.8/10

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

EPSS Probability
8.69%

94.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
BuffaloWsr-2533dhpl2-Bk Firmware<= 1.02
BuffaloWsr-2533dhp3-Bk Firmware<= 1.24

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-20091?
The web interfaces of Buffalo WSR-2533DHPL2 firmware version <= 1.02 and WSR-2533DHP3 firmware version <= 1.24 do not properly sanitize user input. An authenticated remote attacker could leverage this vulnerability to alter device configuration, potentially gaining remote code execution.
How severe is CVE-2021-20091?
CVE-2021-20091 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 8.69% probability of exploitation in the next 30 days.
How do I fix CVE-2021-20091?
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-2021-20091?

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

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Source: NVD / NIST