CVE-2025-66738
HIGHCVSS 8.8/10EPSS 0.60%
Last modified
CVE-2025-66738 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. An issue in Yealink T21P_E2 Phone 52.84.0.15 allows a remote normal privileged attacker to execute arbitrary code via a crafted request the ping function of the diagnostic component.. EPSS estimates a 0.60% chance of exploitation in the next 30 days.
Description
An issue in Yealink T21P_E2 Phone 52.84.0.15 allows a remote normal privileged attacker to execute arbitrary code via a crafted request the ping function of the diagnostic component.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Yealink | Sip-T21\(P\)E2 Firmware | 52.84.0.15 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2025-66738?
An issue in Yealink T21P_E2 Phone 52.84.0.15 allows a remote normal privileged attacker to execute arbitrary code via a crafted request the ping function of the diagnostic component.
How severe is CVE-2025-66738?
CVE-2025-66738 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.60% probability of exploitation in the next 30 days.
How do I fix CVE-2025-66738?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2025
- CVE-2025-66720Null pointer dereference in free5gc pcf 1.4.0 in file intern…7.5
- CVE-2025-66723inMusic Brands Engine DJ before 4.3.4 suffers from Insecure …7.5
- CVE-2025-6673The Easy restaurant menu manager plugin for WordPress is vul…6.4
- CVE-2025-66735youlai-boot V2.21.1 is vulnerable to Incorrect Access Contro…7.5
- CVE-2025-66736youlai-boot V2.21.1 is vulnerable to Incorrect Access Contro…7.1
- CVE-2025-66737Yealink T21P_E2 Phone 52.84.0.15 is vulnerable to Directory …4.3
- CVE-2025-6674Improper Neutralization of Input During Web Page Generation …6.1
- CVE-2025-66744In Yonyou YonBIP v3 and before, the LoginWithV8 interface in…7.5
- CVE-2025-6675Authentication Bypass Using an Alternate Path or Channel vul…4.8
- CVE-2025-6676Improper Neutralization of Input During Web Page Generation …5.4
- CVE-2025-66769A NULL pointer dereference in Nitro PDF Pro for Windows v14.…7.5
- CVE-2025-6677Improper Neutralization of Input During Web Page Generation …5.4
Are you affected by CVE-2025-66738?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST