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CVE-2022-25218

20
FAUCET Score

CVE-2022-25218 is a critical vulnerability affecting Phicomm K2, K2G, K2P, K3, and K3C routers, stemming from the insecure use of the RSA algorithm without proper padding in telnetd_startup. This allows an unauthenticated attacker on the local network to manipulate decrypted data, potentially leading to a root shell via crafted UDP packets. The vulnerability has a high CVSS score of 8.1, indicating high impact on confidentiality, integrity, and availability, with high attack complexity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 22.5.9.163CPE matchmatch criteria
cpe:2.3:o:phicomm:k2_firmware:*:*:*:*:*:*:*:*
<= 21.5.37.246CPE matchmatch criteria
cpe:2.3:o:phicomm:k3_firmware:*:*:*:*:*:*:*:*
<= 32.1.15.93CPE matchmatch criteria
cpe:2.3:o:phicomm:k3c_firmware:*:*:*:*:*:*:*:*
<= 22.6.3.20CPE matchmatch criteria
cpe:2.3:o:phicomm:k2g_firmware:*:*:*:*:*:*:*:*
<= 20.4.1.7CPE matchmatch criteria
cpe:2.3:o:phicomm:k2p_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.98%
Probability of exploitation in next 30 days
EPSS Percentile
58.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0098 is in the 23rd percentile among its peer group of 8,914 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (3)

giteavendor investigatingvia llm_extracted
meterspherevendor investigatingvia llm_extracted
qnapvendor investigatingvia llm_extracted

Vendor Advisories (3)

giteallm-gitea-d78c5b5f1419fb6eHIGH

Unpatchable Vulnerabilities in Phicomm Router Firmware

Feb 1, 2022
qnapllm-qnap-974eed3d5372b0f5HIGH

Unpatchable Vulnerabilities in Phicomm Router Firmware

Feb 1, 2022
meterspherellm-metersphere-339e6ada611378ddHIGH

Unpatchable Vulnerabilities in Phicomm Router Firmware

Feb 1, 2022

References

tenable.com / security/research/tra-2022-01
ExploitThird Party Advisory