What is CVE-2022-30040?

CVE-2022-30040 is a high-severity vulnerability in Tenda Ax1803, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2022-05-11.

How severe is CVE-2022-30040?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2022-30040 known to be exploited?

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

Buffer overflow in Tenda Ax1803

CVE-2022-30040

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.

Vulnerability class: Buffer Overflow

EPSS: 0.019 (77.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Tenda Ax1803
Tenda Ax1803_firmware — versions 1.0.0.1_2890
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

References

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

Frequently asked questions

What is CVE-2022-30040?: CVE-2022-30040 is a high-severity vulnerability in Tenda Ax1803, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2022-05-11.
How severe is CVE-2022-30040?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2022-30040 known to be exploited?: 12 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.