CVE-2025-57639: tenda ac9_firmware OS Command Injection
Analyzed
Published 23-09-2025Last modified 24-09-2025
Vulnerability summary
CVE-2025-57639 is a medium (CVSS 6.5) OS Command Injection vulnerability in tenda ac9_firmware. EPSS estimates a 0.98% chance of exploitation in the next 30 days, higher than 61.9% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)EPSS score
0.98%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1github
Timeline
- 23-09-2025PublishedVulnerability first disclosed.
- 24-09-2025Last modifiedVulnerability information updated.
Description
OS Command injection vulnerability in Tenda AC9 1.0 was discovered to contain a command injection vulnerability via the usb.samba.guest.user parameter in the formSetSambaConf function of the httpd file.
CVSS metrics
2 scores · 2 sources · 1 versionMedium 6.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:NSourcesAll 2 agree
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS trend
Probability
0.98%
Chance of exploitation in the next 30 days
Percentile
62%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.98% 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 foundIot Vulnerability
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Tenda1 product
- ac9_firmware1.0
1 vendor · 1 product