Critical severity · published Aug 21, 2023
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…
9.8
CVSS
0.9%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VF
Vigor2620 Firmware · Draytek
before 3.9.8.4 · source: NVD
VF
Vigor2625 Firmware · Draytek
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-31447
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-31447
Product
https://draytek.com
Third Party Advisory
https://gist.github.com/rrrrrrri/013c9eef64b265af4163478bfcf29ff4
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