What is CVE-2025-7091?

CVE-2025-7091 is a high-severity vulnerability in Belkin F9k1122, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2025-07-06.

How severe is CVE-2025-7091?

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

Buffer overflow in Belkin F9k1122

CVE-2025-7091

A vulnerability was found in Belkin F9K1122 1.00.33. It has been classified as critical. Affected is the function formWlanMP of the file /goform/formWlanMP of the component webs. The manipulation of the argument ateFunc/ateGain/ateTxCount/ateChan/ateRate/ateMacID/e2pTxPower1/e2pTxPower2/e2pTxPower3/e2pTxPower4/e2pTxPower5/e2pTxPower6/e2pTxPower7/e2pTx2Power1/e2pTx2Power2/e2pTx2Power3/e2pTx2Power4/e2pTx2Power5/e2pTx2Power6/e2pTx2Power7/ateTxFreqOffset/ateMode/ateBW/ateAntenna/e2pTxFreqOffset/e2pTxPwDeltaB/e2pTxPwDeltaG/e2pTxPwDeltaMix/e2pTxPwDeltaN/readE2P leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Vulnerability class: Buffer Overflow

Published 2025-07-06 · 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: 0.065 (93.6th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 93.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.053 · newest: 0.065 · change: +0.013

Affected products

Belkin F9k1122 — versions 1.00.33
Belkin F9k1122 Firmware — versions 1.00.33

Weakness classification (CWE)

References

vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
vuldb.com/ (signature, Permissions Required, permissions-required)
vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
github.com/wudipjq/my_vuln/blob/main/Belkin/vuln_11/11.md (related, Exploit, Third Party Advisory)
github.com/wudipjq/my_vuln/blob/main/Belkin/vuln_11/11.md (Exploit, Third Party Advisory, exploit)

Frequently asked questions

What is CVE-2025-7091?: CVE-2025-7091 is a high-severity vulnerability in Belkin F9k1122, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2025-07-06.
How severe is CVE-2025-7091?: High severity. CVSS v3 base score is 8.8 out of 10.