What is CVE-2021-31624?

CVE-2021-31624 is a high-severity vulnerability in Tendacn Ac9, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2021-10-29.

How severe is CVE-2021-31624?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2021-31624 known to be exploited?

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

Buffer overflow in Tendacn Ac9

CVE-2021-31624

Buffer Overflow vulnerability in Tenda AC9 V1.0 through V15.03.05.19(6318), and AC9 V3.0 V15.03.06.42_multi, allows attackers to execute arbitrary code via the urls parameter.

Vulnerability class: Buffer Overflow

EPSS: 0.012 (65.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Tendacn Ac9 — versions 3.0, 1.0
Tendacn Ac9_firmware
N/a — versions n/a

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

attilaszia/linux-iot-cves

References

cve@mitre.org (x_refsource_MISC, Not Applicable)
cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-31624?: CVE-2021-31624 is a high-severity vulnerability in Tendacn Ac9, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2021-10-29.
How severe is CVE-2021-31624?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2021-31624 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.