What is CVE-2023-43240?

CVE-2023-43240 is a critical-severity vulnerability in Dlink Dir-816 A2, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2023-09-21.

How severe is CVE-2023-43240?

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

Buffer overflow in Dlink Dir-816 A2

CVE-2023-43240

D-Link DIR-816 A2 v1.10CNB05 was discovered to contain a stack overflow via parameter sip_address in ipportFilter.

Vulnerability class: Buffer Overflow

EPSS: 0.122 (95.8th 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

Dlink Dir-816_a2
Dlink Dir-816_a2_firmware — versions 1.10cnb05
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

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

Frequently asked questions

What is CVE-2023-43240?: CVE-2023-43240 is a critical-severity vulnerability in Dlink Dir-816 A2, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2023-09-21.
How severe is CVE-2023-43240?: Critical severity. CVSS v3 base score is 9.8 out of 10.