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CVE-2025-4348

28
FAUCET Score

CVE-2025-4348 is a critical buffer overflow vulnerability affecting D-Link DIR-600L routers, specifically in the formSetWanL2TP function when processing the 'host' argument. This remotely exploitable flaw carries a CVSS score of 9.8, indicating high impact on confidentiality, integrity, and availability. While no active exploitation or public exploit code is currently known, and community discussion is minimal, the vulnerability affects an unsupported product line, increasing its risk profile for unpatched devices.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.07b01CPE matchmatch criteria
cpe:2.3:o:dlink:dir-600l_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

8.7HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
1.61%
Probability of exploitation in next 30 days
EPSS Percentile
73.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0161 is in the 61st 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

github.com / jylsec/vuldb/blob/main/D-Link/dlink_dir600l/Buffer_ovrflow-formSetWanL2TP-curTime/README.md
Broken LinkThird Party Advisory
vuldb.com
Permissions Required
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
dlink.com
Product