CVE-2020-25218 Grandstream GRP261x VoIP phone running firmware version 1.0.3.6 (Base) allow Authentication Bypass in its administrative web interface.

CriticalCVSS 9.8 EPSS 1.8%

Published: 2021-03-29 19:54
Updated: 2026-06-17 06:06
Exploit status: No public exploit known

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Description

Grandstream GRP261x VoIP phone running firmware version 1.0.3.6 (Base) allow Authentication Bypass in its administrative web interface.

Affected products

Product	Affected versions	Fixed in
grandstream grp2612 firmware	= 1.0.3.6	No fix listed
grandstream grp2612p firmware	= 1.0.3.6	No fix listed
grandstream grp2612w firmware	= 1.0.3.6	No fix listed
grandstream grp2613 firmware	= 1.0.3.6	No fix listed
grandstream grp2614 firmware	= 1.0.3.6	No fix listed
grandstream grp2615 firmware	= 1.0.3.6	No fix listed
grandstream grp2616 firmware	= 1.0.3.6	No fix listed

References

cwe.mitre.org third-party-advisory
github.com third-party-advisory

CVSS v3.1

9.8 Critical

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

All scores (2)

v3.1 9.8 · nvd@nist.gov
v2.0 10.0 · nvd@nist.gov

Weakness & likelihood

EPSS (exploitation probability, 30 days): 1.82% (percentile 79.1)
CWE: CWE-306

Public exploit references

Metadata only. CVERadar never hosts or runs exploit code.

No public exploit references known.