CVE-2021-45392: tenda ax12_firmware Out-of-bounds Write
CVSS: 7.8v2.0HighModified
Published 14-02-2022Last modified 04-08-2024
Vulnerability summary
CVE-2021-45392 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in tenda ax12_firmware. EPSS estimates a 12.29% chance of exploitation in the next 30 days, higher than 96.1% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.8/10
010
High · v2.0 (NVD)EPSS score
12.29%
0%100%
Medium · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 14-02-2022PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
A Buffer Overflow vulnerability exists in Tenda Router AX12 V22.03.01.21_CN in the sub_422CE4 function in page /goform/setIPv6Status via the prefixDelegate parameter, which causes a Denial of Service.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 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
High 7.8Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:CSourcesSingle source
EPSS trend
Probability
12.29%
Chance of exploitation in the next 30 days
Percentile
96%
Versus all other CVEs
30-day change
0.00 pp
From 12.29% on 21-09-2026
21-09-202621-10-2026
EPSS score12.29%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundIot Cve
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Tenda1 product
- ax12_firmware22.03.01.21_cn
1 vendor · 1 product