Medium severity · published Apr 28, 2026
CVE-2026-0711
A post-authentication command injection vulnerability in the EasyMesh-related APIs of Zyxel DX3300-T0 firmware versions through 5.50(ABVY.7.1)C0 could allow an authenticated,…
6.8
CVSS
0.8%
EPSS
No
On KEV
Description
A post-authentication command injection vulnerability in the EasyMesh-related APIs of Zyxel DX3300-T0 firmware versions through 5.50(ABVY.7.1)C0 could allow an authenticated, adjacent attacker with administrator privileges to execute OS commands on an affected device.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 58% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DF
DX3300-T0 firmware · Zyxel
<= 5.50(ABVY.7.1)C0 · source: vendor, NVD
AF
Ax7501-b0 Firmware · Zyxel
before 5.17\(abpc.7.2\)c0 · source: NVD
AF
Ax7501-b1 Firmware · Zyxel
before 5.17\(abpc.7.2\)c0 · source: NVD
DF
Dx3300-t1 Firmware · Zyxel
before 5.50\(abvy.7.2\)c0 · source: NVD
DF
Dx3301-t0 Firmware · Zyxel
before 5.50\(abvy.7.2\)c0 · source: NVD
DF
Dx5401-b0 Firmware · Zyxel
before 5.17\(abyo.7.2\)c0 · source: NVD
DF
Dx5401-b1 Firmware · Zyxel
before 5.17\(abyo.7.2\)c0 · source: NVD
EF
Ee3301-00 Firmware · Zyxel
before 5.63\(acmu.3.1\)c0 · source: NVD
EF
Ee5301-00 Firmware · Zyxel
before 5.63\(acld.3.1\)c0 · source: NVD
EF
Ee6510-10 Firmware · Zyxel
before 5.19\(acjq.4.2\)c0 · source: NVD
EF
Emg3525-t50b Firmware · Zyxel
before 5.50\(abpm.9.8\)c0 · source: NVD
EF
Emg5523-t50b Firmware · Zyxel
before 5.50\(abpm.9.8\)c0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-0711
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-0711
Vendor Advisory
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-command-injection-vulnerabilities-in-certain-4g-lte-5g-nr-cpe-dsl-ethernet-cpe-fiber-onts-and-wireless-extenders-04-28-2026
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