CVE-2025-71023: tenda ax3_firmware Stack-based Buffer Overflow
CVSS: 7.5v3.1HighAnalyzed
Published 13-01-2026Last modified 13-01-2026
Vulnerability summary
CVE-2025-71023 is a high (CVSS 7.5) Stack-based Buffer Overflow vulnerability in tenda ax3_firmware. EPSS estimates a 0.46% chance of exploitation in the next 30 days, higher than 38.5% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.5/10
010
High · v3.1 (CVE.org)EPSS score
0.46%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 13-01-2026PublishedVulnerability first disclosed.
- 13-01-2026Last modifiedVulnerability information updated.
Description
Tenda AX-3 v16.03.12.10_CN was discovered to contain a stack overflow in the mac2 parameter of the fromAdvSetMacMtuWan function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.
CVSS metrics
2 scores · 2 sources · 1 versionHigh 7.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 2 agree
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.46%
Chance of exploitation in the next 30 days
Percentile
39%
Versus all other CVEs
30-day change
+0.01 pp
From 0.45% on 21-09-2026
21-09-202621-10-2026
EPSS score0.46%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundVulnbycola
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Tenda1 product
- ax3_firmware16.03.12.10_cn
1 vendor · 1 product