CVE-2025-55603: tenda ax3_firmware Classic Buffer Overflow
CVSS: 9.8v3.1CriticalAnalyzed
Published 22-08-2025Last modified 26-08-2025
Vulnerability summary
CVE-2025-55603 is a critical (CVSS 9.8) Classic Buffer Overflow vulnerability in tenda ax3_firmware. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 34.2% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)EPSS score
0.41%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 22-08-2025PublishedVulnerability first disclosed.
- 26-08-2025Last modifiedVulnerability information updated.
Description
Tenda AX3 V16.03.12.10_CN is vulnerable to Buffer Overflow in the fromSetSysTime function via the ntpServer parameter.
CVSS metrics
2 scores · 2 sources · 1 versionCritical 9.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSources2 sources · 7.5–9.8
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HDiffers
EPSS trend
Probability
0.41%
Chance of exploitation in the next 30 days
Percentile
34%
Versus all other CVEs
30-day change
0.00 pp
From 0.41% on 21-09-2026
21-09-202621-10-2026
EPSS score0.41%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundMy Vuln
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Tenda1 product
- ax3_firmware16.03.12.10_cn
1 vendor · 1 product