CVE-2025-55499: tenda ac6_firmware Classic Buffer Overflow
CVSS: 6.5v3.1MediumAnalyzed
Published 20-08-2025Last modified 20-08-2025
Vulnerability summary
CVE-2025-55499 is a medium (CVSS 6.5) Classic Buffer Overflow vulnerability in tenda ac6_firmware. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 17.2% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)EPSS score
0.26%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 20-08-2025PublishedVulnerability first disclosed.
- 20-08-2025Last modifiedVulnerability information updated.
Description
Tenda AC6 V15.03.06.23_multi was discovered to contain a buffer overflow via the ntpServer parameter in the fromSetSysTime function.
CVSS metrics
2 scores · 2 sources · 1 versionMedium 6.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:NSourcesAll 2 agree
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
EPSS trend
Probability
0.26%
Chance of exploitation in the next 30 days
Percentile
17%
Versus all other CVEs
30-day change
0.00 pp
From 0.26% on 21-09-2026
21-09-202621-10-2026
EPSS score0.26%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundIot Vuln
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Tenda1 product
- ac6_firmware15.03.06.23
1 vendor · 1 product
References
1 links- github.com/SolitaryGrass/IoT_vuln/blob/main/tenda/AC6/AC6V2.0RTL_V15.03.06.23/fromSetSysTime/poc.mdExploitThird Party Advisory