How severe is CVE-2026-6058?

CVE-2026-6058 has a CVSS 3.x base score of 4.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-6058 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-6058?

CVE-2026-6058 affects Zyxel Wre6505 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-6058?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-6058 have an EU (EUVD) identifier?

Yes. CVE-2026-6058 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-24051.

When was CVE-2026-6058 published?

CVE-2026-6058 was published on 2026-04-21 and last updated on 2026-07-08.

CVE-2026-6058

CVE-2026-6058 is a medium-severity vulnerability in Zyxel Wre6505 Firmware with a CVSS 3.x base score of 4.5. 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-116.

Key facts

Severity: Medium (CVSS 3.x base score 4.5)
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-24051
Weakness: CWE-116
Affected product: Zyxel Wre6505 Firmware
Published: 2026-04-21
Last modified: 2026-07-08

Description

** UNSUPPORTED WHEN ASSIGNED ** An improper encoding or escaping vulnerability in the CGI program of Zyxel WRE6505 v2 firmware version V1.00(ABDV.3)C0 could allow an adjacent attacker on the WLAN to cause a denial-of-service (DoS) condition in the web management interface by convincing an authenticated administrator to visit the “AP Select” page while a malformed SSID is present.

Frequently asked questions

What is CVE-2026-6058?: ** UNSUPPORTED WHEN ASSIGNED ** An improper encoding or escaping vulnerability in the CGI program of Zyxel WRE6505 v2 firmware version V1.00(ABDV.3)C0 could allow an adjacent attacker on the WLAN to cause a denial-of-service (DoS) condition in the web management interface by convincing an authenticated administrator to visit the “AP Select” page while a malformed SSID is present.
How severe is CVE-2026-6058?: CVE-2026-6058 has a CVSS 3.x base score of 4.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-6058 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-6058?: CVE-2026-6058 affects Zyxel Wre6505 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-6058?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-6058 have an EU (EUVD) identifier?: Yes. CVE-2026-6058 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-24051.
When was CVE-2026-6058 published?: CVE-2026-6058 was published on 2026-04-21 and last updated on 2026-07-08.

References

https://www.zyxel.com/global/en/support/end-of-life

Affected products (1)

cpe:2.3:o:zyxel:wre6505_firmware:v1.00\(abdv.3\)c0:*:*:*:*:*:*:*

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