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CVE-2026-2071

28
FAUCET Score

CVE-2026-2071 describes a critical buffer overflow vulnerability in UTT 进取 520W firmware version 1.7.7-180627, specifically within the strcpy function in the /goform/formP2PLimitConfig file when handling the 'except' argument. This vulnerability carries a high CVSS score of 8.8, indicating a severe risk with network-based attacks requiring low privileges but no user interaction, potentially leading to high confidentiality, integrity, and availability impacts. While public exploit code exists, there is no evidence of active exploitation, nor is it listed in CISA's KEV catalog; however, the vendor has not responded to disclosure attempts, and community discussion remains minimal.

Impacted Technologies

VendorProductVersion(s)CPE
1.7.7-180627CPE matchmatch criteria
cpe:2.3:o:utt:520w_firmware:1.7.7-180627:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

7.4HIGH

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:P/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
PROOF_OF_CONCEPT
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.65%
Probability of exploitation in next 30 days
EPSS Percentile
47.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0065 is in the 39th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 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

Remediation records are not available for this CVE.

References

github.com / cymiao1978/cve/blob/main/new/40.md
ExploitThird Party Advisory
vuldb.com
Permissions RequiredVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry