Review reviewHigh

CVE-2025-63409

gcom epon 1ge firmware, gcom epon 1ge

Privilege escalation and improper access control in GCOM EPON 1GE C00R371V00B01 allows remote authenticated users to modify administrator only settings and extract administrator credentials.

CVSS
8.8
EPSS
0.28%
19.8% percentile
CISA KEV
Not listed
Published
2026.02.25
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.28%
Technical severityCVSS 8.8

Vulnerability overview

Privilege escalation and improper access control in GCOM EPON 1GE C00R371V00B01 allows remote authenticated users to modify administrator only settings and extract administrator credentials.

Affected product and versions

Product
gcom epon 1ge firmware, gcom epon 1ge
Affected versions
c00r371v00b01
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that gcom epon 1ge firmware, gcom epon 1ge and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-284
CVE-2025-63409 — gcom epon 1ge firmware, gcom epon 1ge | SECUFOCUS NOW