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CVE-2023-31447

CRITICALCVSS 9.8/10EPSS 0.86%

Last modified

CVE-2023-31447 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. user_login.cgi on Draytek Vigor2620 devices before 3.9.8.4 (and on all versions of Vigor2925 devices) allows attackers to send a crafted payload to modify the content of the code segment, insert shellcode, and execute arbitrary code.. EPSS estimates a 0.86% chance of exploitation in the next 30 days.

Description

user_login.cgi on Draytek Vigor2620 devices before 3.9.8.4 (and on all versions of Vigor2925 devices) allows attackers to send a crafted payload to modify the content of the code segment, insert shellcode, and execute arbitrary code.

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
0.86%

53.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
DraytekVigor2620 Firmware< 3.9.8.4
DraytekVigor2625 FirmwareAll versions

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2023-31447?
user_login.cgi on Draytek Vigor2620 devices before 3.9.8.4 (and on all versions of Vigor2925 devices) allows attackers to send a crafted payload to modify the content of the code segment, insert shellcode, and execute arbitrary code.
How severe is CVE-2023-31447?
CVE-2023-31447 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.86% probability of exploitation in the next 30 days.
How do I fix CVE-2023-31447?
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-2023-31447?

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

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Source: NVD / NIST