What is CVE-2025-11300?

CVE-2025-11300 is a high-severity vulnerability in Belkin F9k1015, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2025-10-05.

How severe is CVE-2025-11300?

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

Is CVE-2025-11300 known to be exploited?

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

Buffer overflow in Belkin F9k1015

CVE-2025-11300

A security flaw has been discovered in Belkin F9K1015 1.00.10. The impacted element is an unknown function of the file /goform/formWlanMP. The manipulation of the argument ateFunc results in buffer overflow. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Vulnerability class: Buffer Overflow

Published 2025-10-05 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.008 (56.2th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: +0.001

Affected products

Belkin F9k1015 — versions 1.00.10
Belkin F9k1015 Firmware — versions 1.00.10

Weakness classification (CWE)

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
github.com/panda666-888/vuls/blob/main/belkin/f9k1015/formWlanMP.md (related, Exploit, Third Party Advisory)
github.com/panda666-888/vuls/blob/main/belkin/f9k1015/formWlanMP.md (Exploit, Third Party Advisory, exploit)

Frequently asked questions

What is CVE-2025-11300?: CVE-2025-11300 is a high-severity vulnerability in Belkin F9k1015, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2025-10-05.
How severe is CVE-2025-11300?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2025-11300 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.