How severe is CVE-2018-19326?

CVE-2018-19326 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2018-19326 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-19326?

CVE-2018-19326 affects Zyxel Vmg1312-b10d Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-19326?

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-2018-19326 published?

CVE-2018-19326 was published on 2018-11-17 and last updated on 2026-06-17.

CVE-2018-19326

CVE-2018-19326 is a high-severity vulnerability in Zyxel Vmg1312-b10d Firmware with a CVSS 3.x base score of 7.5. 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-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 10% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Zyxel Vmg1312-b10d Firmware
Published: 2018-11-17
Last modified: 2026-06-17

Description

Zyxel VMG1312-B10D devices before 5.13(AAXA.8)C0 allow ../ Directory Traversal, as demonstrated by reading /etc/passwd.

Frequently asked questions

What is CVE-2018-19326?: Zyxel VMG1312-B10D devices before 5.13(AAXA.8)C0 allow ../ Directory Traversal, as demonstrated by reading /etc/passwd.
How severe is CVE-2018-19326?: CVE-2018-19326 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2018-19326 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-19326?: CVE-2018-19326 affects Zyxel Vmg1312-b10d Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-19326?: 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-2018-19326 published?: CVE-2018-19326 was published on 2018-11-17 and last updated on 2026-06-17.

References

https://gist.github.com/numanturle/4988b5583e5ebe501059bd368636de33

Affected products (1)

cpe:2.3:o:zyxel:vmg1312-b10d_firmware:*:*:*:*:*:*:*:*

Other CWE-22 (Path Traversal) vulnerabilities

CVE-2026-48282 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Limitation of a Pathname to a Restricted…
CVE-2026-54917 — Critical (CVSS 10.0): SeaweedFS is a distributed storage system for object storage (S3), file systems, and Iceberg tables. Prior to 4.30, the…
CVE-2026-11429 — Critical (CVSS 10.0): Two endpoints in the Vault Service ScriptsController, shared by Altium Enterprise Server and Altium 365, accept file…
CVE-2026-34909 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit a Path Traversal vulnerability found in UniFi OS devices to…
CVE-2026-7411 — Critical (CVSS 10.0): In Eclipse BaSyx Java Server SDK versions prior to 2.0.0-milestone-10, inadequate path normalization in the Submodel…
CVE-2026-36767 — Critical (CVSS 10.0): A path traversal vulnerability in the /content/images/add endpoint of shopizer v3.2.5 allows attackers write arbitrary…

Browse all CWE-22 (Path Traversal) vulnerabilities →