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CVE-2025-3259

26
FAUCET Score

CVE-2025-3259 is a critical stack-based buffer overflow vulnerability affecting Tenda RX3 firmware version 16.03.13.11, specifically within the formSetDeviceName function of the /goform/SetOnlineDevName file. This flaw, triggered by manipulating the devName argument, allows for remote exploitation with low attack complexity and no user interaction required. With a CVSS score of 8.8 (HIGH), successful exploitation could lead to high impacts on confidentiality, integrity, and availability. While exploit code has been publicly disclosed, there is currently no evidence of active exploitation, Metasploit or Nuclei modules, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
16.03.13.11_multiCPE matchmatch criteria
cpe:2.3:o:tenda:rx3_firmware:16.03.13.11_multi:*:*:*:*:*:*:*

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
1.01%
Probability of exploitation in next 30 days
EPSS Percentile
59.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0101 is in the 56th 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

sixth-action-50e.notion.site / Tenda-RX3-Buffer-Overflow-1c9f6468377380a2977cd6c3a81f453c
ExploitThird Party Advisory
sixth-action-50e.notion.site / Tenda-RX3-Buffer-Overflow-1c9f6468377380a2977cd6c3a81f453c
ExploitThird Party Advisory
vuldb.com
Permissions RequiredThird Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
tenda.com.cn
Third Party AdvisoryVDB Entry