What is CVE-2022-30521?

CVE-2022-30521 is a critical-severity vulnerability in Dlink Dir-890l, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2022-06-02.

How severe is CVE-2022-30521?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2022-30521 known to be exploited?

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

Buffer overflow in Dlink Dir-890l

CVE-2022-30521

The LAN-side Web-Configuration Interface has Stack-based Buffer Overflow vulnerability in the D-Link Wi-Fi router firmware DIR-890L DIR890LA1_FW107b09.bin and previous versions. The function created at 0x17958 of /htdocs/cgibin will call s…

Vulnerability class: Buffer Overflow

EPSS: 0.136 (96.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

References

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

Frequently asked questions

What is CVE-2022-30521?: CVE-2022-30521 is a critical-severity vulnerability in Dlink Dir-890l, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2022-06-02.
How severe is CVE-2022-30521?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-30521 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.