What is CVE-2021-35325?

CVE-2021-35325 is a high-severity vulnerability in Totolink A720r, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2021-08-05.

How severe is CVE-2021-35325?

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

Is CVE-2021-35325 known to be exploited?

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

Buffer overflow in Totolink A720r

CVE-2021-35325

A stack overflow in the checkLoginUser function of TOTOLINK A720R A720R_Firmware v4.1.5cu.470_B20200911 allows attackers to cause a denial of service (DOS).

Vulnerability class: Buffer Overflow

EPSS: 0.133 (95.9th 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

Totolink A720r
Totolink A720r_firmware — versions 4.1.5cu.470_b20200911
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)

Frequently asked questions

What is CVE-2021-35325?: CVE-2021-35325 is a high-severity vulnerability in Totolink A720r, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2021-08-05.
How severe is CVE-2021-35325?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2021-35325 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.