High severity · published May 12, 2026
CVE-2026-7256
** UNSUPPORTED WHEN ASSIGNED ** A command injection vulnerability in the CGI program of Zyxel WRE6505 v2 firmware version V1.00(ABDV.3)C0 could allow an adjacent attacker on the…
8.8
CVSS
1%
EPSS
No
On KEV
Description
** UNSUPPORTED WHEN ASSIGNED ** A command injection vulnerability in the CGI program of Zyxel WRE6505 v2 firmware version V1.00(ABDV.3)C0 could allow an adjacent attacker on the LAN to execute operating system (OS) commands on a vulnerable device by sending a crafted HTTP request.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 63% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WV
WRE6505 v2 firmware · Zyxel
V1.00(ABDV.3)C0 · source: vendor
WF
Wre6505 Firmware · Zyxel
v1.00(abdv.3)c0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-7256
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-7256
Product
https://www.zyxel.com/global/en/support/end-of-life
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