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CVE-2022-46637

31
FAUCET Score

CVE-2022-46637 describes a critical vulnerability in Prolink PRS1841 routers, stemming from hardcoded credentials for Telnet and FTP services. This allows unauthenticated remote attackers to gain full control of affected devices with low attack complexity, leading to complete compromise of confidentiality, integrity, and availability. While the vulnerability has a CVSS score of 9.8 (Critical), there is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding it.

Impacted Technologies

VendorProductVersion(s)CPE
u_v2CPE matchmatch criteria
cpe:2.3:o:prolink2u:prs1841_firmware:u_v2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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 Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.52%
Probability of exploitation in next 30 days
EPSS Percentile
72.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0152 is in the 59th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

0xsp.com / security%20research%20%20development%20srd/backdoor-discovered-in-pldt-home-fiber-routers
ExploitThird Party Advisory
packetstormsecurity.com / files/170342/ProLink-PRS1841-Backdoor-Account.html
Third Party AdvisoryVDB Entry
prolink2u.com / product/prs1841
ProductVendor Advisory