CVE-2022-25218
8.1 · HIGHOverview
CVE-2022-25218 is a high-severity vulnerability affecting phicomm k2_firmware. It was published on March 10, 2022 and has a CVSS 3.1 base score of 8.1 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
The use of the RSA algorithm without OAEP, or any other padding scheme, in telnetd_startup, allows an unauthenticated attacker on the local area network to achieve a significant degree of control over the "plaintext" to which an arbitrary blob of ciphertext will be decrypted by OpenSSL's RSA_public_decrypt() function. This weakness allows the attacker to manipulate the various iterations of the telnetd startup state machine and eventually obtain a root shell on the device, by means of an exchange of crafted UDP packets. In all versions but K2 22.5.9.163 and K3C 32.1.15.93 a successful attack also requires the exploitation of a null-byte interaction error (CVE-2022-25219).
Remediation
Check the references section for vendor advisories and patches from phicomm. Update k2_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| phicomm | k2_firmware | 0 | Affected |
| phicomm | k3_firmware | 0 | Affected |
| phicomm | k3c_firmware | 0 | Affected |
| phicomm | k2g_firmware | 0 | Affected |
| phicomm | k2p_firmware | 0 | Affected |
Frequently Asked Questions
What is CVE-2022-25218?
CVE-2022-25218 is a high-severity vulnerability affecting phicomm k2_firmware. It was published on March 10, 2022 and has a CVSS 3.1 base score of 8.1 (HIGH).
How severe is CVE-2022-25218?
This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2022-25218?
Check the references section for vendor advisories and patches from phicomm. Update k2_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2022-25218?
CyberStrike's AI-powered security agents can automatically detect CVE-2022-25218 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
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