What is CVE-2023-31447?

CVE-2023-31447 is a critical-severity vulnerability in Draytek Vigor2620, classified under Code Injection. CVSS score: 9.8/10. Published 2023-08-21.

How severe is CVE-2023-31447?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Draytek Vigor2620

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.

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.009 (54.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Draytek Vigor2620
Draytek Vigor2620_firmware
Draytek Vigor2625
Draytek Vigor2625_firmware
N/a — versions n/a

Weakness classification (CWE)

CWE-94 — Code Injection

References

cve@mitre.org (Product)
cve@mitre.org (Third Party Advisory)

Frequently asked questions

What is CVE-2023-31447?: CVE-2023-31447 is a critical-severity vulnerability in Draytek Vigor2620, classified under Code Injection. CVSS score: 9.8/10. Published 2023-08-21.
How severe is CVE-2023-31447?: Critical severity. CVSS v3 base score is 9.8 out of 10.