CVE-2025-70648: tenda ax1803_firmware Stack-based Buffer Overflow
Analyzed
Published 21-01-2026Last modified 22-01-2026
Vulnerability summary
CVE-2025-70648 is a high (CVSS 7.5) Stack-based Buffer Overflow vulnerability in tenda ax1803_firmware. EPSS estimates a 0.37% chance of exploitation in the next 30 days, higher than 29.7% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.5/10
010
High · v3.1 (CVE.org)EPSS score
0.37%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1github
Timeline
- 21-01-2026PublishedVulnerability first disclosed.
- 22-01-2026Last modifiedVulnerability information updated.
Description
Tenda AX1803 v1.0.0.1 was discovered to contain a stack overflow in the security_5g parameter of the sub_727F4 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
0.37%
Chance of exploitation in the next 30 days
Percentile
30%
Versus all other CVEs
30-day change
Increase +0.01 pp
From 0.36% on 22-09-2026
22-09-202622-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundVulnbycola
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Tenda1 product
- ax1803_firmware1.0.0.1
1 vendor · 1 product