Strix
26.1K

CVE-2021-20045

CRITICALCVSS 9.8/10EPSS 25.21%

Last modified

CVE-2021-20045 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A buffer overflow vulnerability in SMA100 sonicfiles RAC_COPY_TO (RacNumber 36) method allows a remote unauthenticated attacker to potentially execute code as the 'nobody' user in the appliance. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances.. EPSS estimates a 25.21% chance of exploitation in the next 30 days.

Description

A buffer overflow vulnerability in SMA100 sonicfiles RAC_COPY_TO (RacNumber 36) method allows a remote unauthenticated attacker to potentially execute code as the 'nobody' user in the appliance. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances.

Metrics

CVSS 3.1
9.8/10

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

EPSS Probability
25.21%

97.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
SonicwallSma 200 Firmware10.2.0.8-37sv
SonicwallSma 200 Firmware10.2.1.1-19sv
SonicwallSma 210 Firmware10.2.0.8-37sv
SonicwallSma 210 Firmware10.2.1.1-19sv
SonicwallSma 410 Firmware10.2.0.8-37sv
SonicwallSma 410 Firmware10.2.1.1-19sv
SonicwallSma 400 Firmware10.2.0.8-37sv
SonicwallSma 400 Firmware10.2.1.1-19sv
SonicwallSma 500v Firmware10.2.0.8-37sv
SonicwallSma 500v Firmware10.2.1.1-19sv

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-20045?
A buffer overflow vulnerability in SMA100 sonicfiles RAC_COPY_TO (RacNumber 36) method allows a remote unauthenticated attacker to potentially execute code as the 'nobody' user in the appliance. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances.
How severe is CVE-2021-20045?
CVE-2021-20045 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 25.21% probability of exploitation in the next 30 days.
How do I fix CVE-2021-20045?
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-2021-20045?

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

Scan your code now

Source: NVD / NIST