CVE-2022-40069: tenda ac21_firmware Out-of-bounds Write
Modified
Published 19-09-2022Last modified 03-08-2024
Vulnerability summary
CVE-2022-40069 is a high (CVSS 7.5) Out-of-bounds Write vulnerability in tenda ac21_firmware. EPSS estimates a 1.01% chance of exploitation in the next 30 days, higher than 62.7% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
1.01%
0%100%
Low · +0.02 pp in 30 daysKEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1github
Timeline
- 19-09-2022PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
]Tenda AC21 V 16.03.08.15 is vulnerable to Buffer Overflow via /bin/httpd, function: fromSetSysTime.
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
1.01%
Chance of exploitation in the next 30 days
Percentile
63%
Versus all other CVEs
30-day change
Increase +0.02 pp
From 0.99% 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 foundVuln
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Tenda1 product
- ac21_firmware16.03.08.15
1 vendor · 1 product