Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2022-25219

26
FAUCET Score

CVE-2022-25219 is a null byte interaction error in the telnetd_startup daemon of Phicomm K2, K2G, K2P, K3, and K3C routers. This vulnerability allows an unauthenticated attacker on the local network to predict ephemeral telnet passwords with 1-in-94 odds by crafting UDP packets. Successful exploitation requires the use of an unpadded RSA cipher (CVE-2022-25218). With a CVSS score of 8.4 (High), this vulnerability presents a significant risk, enabling full compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code, or significant community discussion regarding 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

8.4HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.5
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.76%
Probability of exploitation in next 30 days
EPSS Percentile
51.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0076 is in the 71st percentile among its peer group of 3,236 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 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