What is CVE-2023-40898?

CVE-2023-40898 is a critical-severity vulnerability in Tenda Ac8_firmware, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2023-08-24.

How severe is CVE-2023-40898?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2023-40898 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Tenda Ac8_firmware

CVE-2023-40898

Tenda AC8 v4 US_AC8V4.0si_V16.03.34.06_cn was discovered to contain a stack overflow via parameter timeZone at /goform/SetSysTimeCfg.

Vulnerability class: Buffer Overflow

EPSS: 0.007 (48.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Tenda Ac8_firmware — versions 16.03.34.06
Tenda Ac8v4
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

IoTBec/Reports

References

cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-40898?: CVE-2023-40898 is a critical-severity vulnerability in Tenda Ac8_firmware, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2023-08-24.
How severe is CVE-2023-40898?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2023-40898 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.