9.8

CVE-2023-31447: draytek vigor2620_firmware Code Injection

Modified
Published 21-08-2023Last modified 07-10-2024

Vulnerability summary

CVE-2023-31447 is a critical (CVSS 9.8) Code Injection vulnerability in draytek vigor2620_firmware. EPSS estimates a 0.94% chance of exploitation in the next 30 days, higher than 60.5% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
0.94%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 21-08-2023
    PublishedVulnerability first disclosed.
  2. 07-10-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

0.94%

Chance of exploitation in the next 30 days

Percentile

61%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.94% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Draytek1 product

1 vendor · 1 product

References

2 links