What is CVE-2025-6881?

CVE-2025-6881 is a high-severity vulnerability in D-link Di-8100, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2025-06-30.

How severe is CVE-2025-6881?

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

Buffer overflow in D-link Di-8100

CVE-2025-6881

A vulnerability was found in D-Link DI-8100 16.07.21. It has been rated as critical. Affected by this issue is some unknown functionality of the file /pppoe_base.asp of the component jhttpd. The manipulation of the argument mschap_en leads…

Vulnerability class: Buffer Overflow

EPSS: 0.008 (75.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

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

Affected products

D-link Di-8100 — versions 16.07.21

Weakness classification (CWE)

References

VDB-314360 | D-Link DI-8100 jhttpd pppoe_base.asp buffer overflow (vdb-entry, technical-description)
VDB-314360 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
Submit #603692 | D-Link DI-8100 16.07.21 Buffer Overflow (third-party-advisory)
www.dlink.com/ (product)

Frequently asked questions

What is CVE-2025-6881?: CVE-2025-6881 is a high-severity vulnerability in D-link Di-8100, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2025-06-30.
How severe is CVE-2025-6881?: High severity. CVSS v3 base score is 8.8 out of 10.