🛡️ CVE-2022-30040 — ax1803-firmware

🟠 CVSS 7.5 — High ⚠️ Exploit Public CWE-787 NVD
7.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Tenda AX1803 v1.0.0.1_2890 is vulnerable to Buffer Overflow. The vulnerability lies in rootfs_ In / goform / setsystimecfg of / bin / tdhttpd in ubif file system, attackers can access http://ip/goform/SetSysTimeCfg, and by setting the ntpserve parameter, the stack buffer overflow can be caused to achieve the effect of router denial of service.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Weakness class

CVE-2022-30040 is classified as CWE-787: Out-of-bounds Write. Data is written past the end or before the start of a buffer, corrupting whatever is stored there.

Affected software

CVE-2022-30040 is recorded against 1 package.

  • ax1803-firmware

Timeline and source

Published on 11 May 2022 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. Record sourced from NVD.

References

github.com
github.com
github.com
github.com

Details

Severity HIGH
CVSS Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-787
Public Exploit ⚠️ Yes
Source NVD
Published 2022-05-11
Updated 2026-08-11
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
ax1803-firmware — —

References

Exploit, Third Party Advisory https://github.com/Le1a/CVE-2022-30040
Exploit, Third Party Advisory https://github.com/Le1a/CVE-2022-30040

Similar Threats

Exploit Protection

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