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CVE-2025-71026

27
FAUCET Score

CVE-2025-71026 describes a stack overflow vulnerability in the Tenda AX-3 v16.03.12.10_CN router, specifically within the wanSpeed2 parameter of the fromAdvSetMacMtuWan function. This flaw allows an unauthenticated attacker to trigger a Denial of Service (DoS) by sending a specially crafted request. Rated 7.5 HIGH on the CVSS scale, it presents a significant risk due to its network-based attack vector and low complexity, leading to high availability impact. While there is no evidence of active exploitation, public exploit code, or KEV listing, the vulnerability has garnered substantial community discussion, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
16.03.12.10_cnCPE matchmatch criteria
cpe:2.3:o:tenda:ax3_firmware:16.03.12.10_cn:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.38%
Probability of exploitation in next 30 days
EPSS Percentile
31.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0038 is in the 11th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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 / 0-fool/VulnbyCola/blob/main/Tenda/AX-3/9/1.md
ExploitThird Party Advisory