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CVE-2020-10823

CRITICALCVSS 9.8/10EPSS 4.32%

Last modified

CVE-2020-10823 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A stack-based buffer overflow in /cgi-bin/activate.cgi through var parameter on Draytek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1 allows remote attackers to achieve code execution via a remote HTTP request (issue 1 of 3).. EPSS estimates a 4.32% chance of exploitation in the next 30 days.

Description

A stack-based buffer overflow in /cgi-bin/activate.cgi through var parameter on Draytek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1 allows remote attackers to achieve code execution via a remote HTTP request (issue 1 of 3).

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
4.32%

89.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
DraytekVigor300b Firmware< 1.5.1
DraytekVigor3900 Firmware< 1.5.1
DraytekVigor2960 Firmware< 1.5.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-10823?
A stack-based buffer overflow in /cgi-bin/activate.cgi through var parameter on Draytek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1 allows remote attackers to achieve code execution via a remote HTTP request (issue 1 of 3).
How severe is CVE-2020-10823?
CVE-2020-10823 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 4.32% probability of exploitation in the next 30 days.
How do I fix CVE-2020-10823?
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-2020-10823?

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

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Source: NVD / NIST