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CVE-2022-26414

21
FAUCET Score

CVE-2022-26414 describes a buffer overflow vulnerability in Zyxel VMG3312-T20A firmware version 5.30(ABFX.5)C0. This flaw allows a local, authenticated attacker to trigger a denial of service. The vulnerability has a CVSS score of 5.5 (Medium), indicating a low attack complexity and requiring local authentication, with the primary impact being high availability loss. There is no evidence of active exploitation, nor are there public exploit codes available in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
5.30\(abfx.5\)c0CPE matchmatch criteria
cpe:2.3:o:zyxel:vmg3312-t20a_firmware:5.30\(abfx.5\)c0:*:*:*:*:*:*:*
< 5.50\(abpm.6\)c0CPE matchmatch criteria
cpe:2.3:o:zyxel:emg3525-t50b_firmware:*:*:*:*:america:*:*:*
< 5.50\(abpm.6\)c0CPE matchmatch criteria
cpe:2.3:o:zyxel:emg3525-t50b_firmware:*:*:*:*:emea:*:*:*
< 5.50\(abpm.6\)c0CPE matchmatch criteria
cpe:2.3:o:zyxel:emg5523-t50b_firmware:*:*:*:*:america:*:*:*
< 5.50\(abpm.6\)c0CPE matchmatch criteria
cpe:2.3:o:zyxel:emg5523-t50b_firmware:*:*:*:*:emea:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.0MEDIUM

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.8
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.20%
Probability of exploitation in next 30 days
EPSS Percentile
10.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0020 is in the 48th percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

zyxel.com / support/OS-command-injection-and-buffer-overflow-vulnerabilities-of-CPE-and-ONTs.shtml
Vendor Advisory