Medium severity · published Apr 11, 2022
CVE-2022-26414
A potential buffer overflow vulnerability was identified in some internal functions of Zyxel VMG3312-T20A firmware version 5.30(ABFX.5)C0, which could be exploited by a local…
5.5
CVSS
0.2%
EPSS
No
On KEV
Description
A potential buffer overflow vulnerability was identified in some internal functions of Zyxel VMG3312-T20A firmware version 5.30(ABFX.5)C0, which could be exploited by a local authenticated attacker to cause a denial of service.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 11% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AF
Ax7501-b0 Firmware · Zyxel
before 5.17\(abpc.1\)c0 · source: NVD
DF
Dx5401-b0 Firmware · Zyxel
before 5.17\(abyo.1\)c0 · source: NVD
EF
Emg3525-t50b Firmware · Zyxel
before 5.50\(abpm.6\)c0; before 5.50\(abpm.6\)c0 · source: NVD
EF
Emg5523-t50b Firmware · Zyxel
before 5.50\(abpm.6\)c0; before 5.50\(abpm.6\)c0 · source: NVD
EF
Emg5723-t50k Firmware · Zyxel
before 5.50\(abom.7\)c0 · source: NVD
EF
Emg6726-b10a Firmware · Zyxel
before 5.13\(abnp.7\)c0 · source: NVD
EF
Ep240p Firmware · Zyxel
before 5.40\(abh.0\)c0 · source: NVD
EF
Ex3510-b0 Firmware · Zyxel
before 5.17\(abup.4\)c1 · source: NVD
EF
Ex5401-b0 Firmware · Zyxel
before 5.17\(abyo.1\)c0 · source: NVD
EF
Ex5501-b0 Firmware · Zyxel
before 5.17\(abry.2\)c0 · source: NVD
PF
Pm7300-t0 Firmware · Zyxel
before 5.42\(acbc.1\)c0 · source: NVD
PF
Pmg5317-t20b Firmware · Zyxel
before 5.40\(abki.4\)c0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-26414
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-26414
Vendor Advisory
https://www.zyxel.com/support/OS-command-injection-and-buffer-overflow-vulnerabilities-of-CPE-and-ONTs.shtml
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