Is there a public exploit for CVE-2026-12489?

No public exploit for CVE-2026-12489 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-12489?

CVE-2026-12489 scores CVSS 6.5 (v3.1), rated medium. EPSS puts the chance of exploitation in the next 30 days at 0.29%.

What does CVE-2026-12489 affect?

CVE-2026-12489 affects Zyxel EX3501-T0 firmware.

6.5 Medium

An incorrect authorization vulnerability in the Data Access Layer (DAL) of Zyxel EX3501-T0 firmware versions through 5.44(ACHR.6)C0 could…

CVE-2026-12489

An incorrect authorization vulnerability in the Data Access Layer (DAL) of Zyxel EX3501-T0 firmware versions through 5.44(ACHR.6)C0 could allow an authenticated attacker to escalate privileges by modifying the loginprivilege data on an affected device.

Assessment

CVSS: 6.5 (v3.1)
Severity: Medium
EPSS: 0.29% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 20 October 2026
Last updated: 3 November 2026
Affected: Zyxel · EX3501-T0 firmware
Assigner: Zyxel

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

At the source

EUVD (ENISA)

References

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-incorrect-authorization-vulnerability-in-the-dal-of-certain-5g-nr-cpe-dsl-ethernet-cpe-fiber-onts-and-wireless-extenders-10-20-2026

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