CVE-2022-26413
CVE-2022-26413 is a high-severity vulnerability in Zyxel Vmg3312-t20a Firmware with a CVSS 3.x base score of 8.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.
Key facts
- Severity: High (CVSS 3.x base score 8.0)
- CVSS v2: 7.7
- EPSS exploit prediction: 1% (48th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-78
- Affected product: Zyxel Vmg3312-t20a Firmware
- Published:
- Last modified:
Description
A command injection vulnerability in the CGI program of Zyxel VMG3312-T20A firmware version 5.30(ABFX.5)C0 could allow a local authenticated attacker to execute arbitrary OS commands on a vulnerable device via a LAN interface.
Frequently asked questions
- What is CVE-2022-26413?
- A command injection vulnerability in the CGI program of Zyxel VMG3312-T20A firmware version 5.30(ABFX.5)C0 could allow a local authenticated attacker to execute arbitrary OS commands on a vulnerable device via a LAN interface.
- How severe is CVE-2022-26413?
- CVE-2022-26413 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2022-26413 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2022-26413?
- CVE-2022-26413 primarily affects Zyxel Vmg3312-t20a Firmware. In total, 34 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2022-26413?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2022-26413 published?
- CVE-2022-26413 was published on 2022-04-11 and last updated on 2026-06-17.
References
Affected products (34)
- cpe:2.3:o:zyxel:vmg3312-t20a_firmware:5.30\(abfx.5\)c0:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:emg3525-t50b_firmware:*:*:*:*:america:*:*:*
- cpe:2.3:o:zyxel:emg3525-t50b_firmware:*:*:*:*:emea:*:*:*
- cpe:2.3:o:zyxel:emg5523-t50b_firmware:*:*:*:*:america:*:*:*
- cpe:2.3:o:zyxel:emg5523-t50b_firmware:*:*:*:*:emea:*:*:*
- cpe:2.3:o:zyxel:emg5723-t50k_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:emg6726-b10a_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:vmg1312-t20b_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:vmg3625-t50b_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:vmg3927-b50a_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:vmg3927-b50b_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:vmg3927-b60a_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:vmg3927-t50k_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:vmg4927-b50a_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:vmg8623-t50b_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:vmg8825-b50a_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:vmg8825-b50b_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:vmg8825-t50k_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:vmg8825-b60a_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:vmg8825-b60b_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:xmg3927-b50a_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:xmg8825-b50a_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:dx5401-b0_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:ex3510-b0_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:ex5401-b0_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:ex5501-b0_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:ax7501-b0_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:ep240p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:pm7300-t0_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:pmg5317-t20b_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:pmg5617ga_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:pmg5617-t20b2_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:pmg5622ga_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:zyxel:px7501-b0_firmware:*:*:*:*:*:*:*:*
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- CVE-2022-26414 — Medium (CVSS 6.0): A potential buffer overflow vulnerability was identified in some internal functions of Zyxel VMG3312-T20A firmware…
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