Cyber Resilience

CVE-2023-38823

Critical

Published: 20 November 2023

Published
20 November 2023
Modified
10 June 2025
KEV Added
Patch
CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0406 88.8th percentile
Risk Priority 22 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-38823 is a critical-severity Classic Buffer Overflow (CWE-120) vulnerability in Tenda Ac6 Firmware. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 11.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Buffer Overflow vulnerability in Tenda Ac19 v.1.0, AC18, AC9 v.1.0, AC6 v.2.0 and v.1.0 allows a remote attacker to execute arbitrary code via the formSetCfm function in bin/httpd.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

tenda
ac6 firmware
15.03.05.19\(6318\)
tenda
ac9 firmware
15.03.05.19\(6318\)
tenda
ac19 firmware
15.03.05.19\(6318\)
tenda
ac18 firmware
15.03.05.19\(6318\)

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-120

Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.

References