CVE-2023-39786: tenda ac8_firmware Out-of-bounds Write
Modified
Published 21-08-2023Last modified 09-07-2026
Vulnerability summary
CVE-2023-39786 is a high (CVSS 7.5) Out-of-bounds Write vulnerability in tenda ac8_firmware. EPSS estimates a 0.81% chance of exploitation in the next 30 days, higher than 56.6% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
0.81%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1github
Timeline
- 21-08-2023PublishedVulnerability first disclosed.
- 09-07-2026Last modifiedVulnerability information updated.
Description
Tenda AC8V4 V16.03.34.06 was discovered to contain a stack overflow via the time parameter in the sscanf function.
CVSS metrics
1 score · 1 source · 1 versionHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesSingle source
EPSS trend
Probability
0.81%
Chance of exploitation in the next 30 days
Percentile
57%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.81% 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
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Tenda1 product
- ac8_firmware16.03.34.06
1 vendor · 1 product