How severe is CVE-2025-7091?

CVE-2025-7091 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-7091 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-7091?

CVE-2025-7091 affects Belkin F9k1122 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-7091?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-7091 have an EU (EUVD) identifier?

Yes. CVE-2025-7091 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-20150.

When was CVE-2025-7091 published?

CVE-2025-7091 was published on 2025-07-06 and last updated on 2026-06-17.

CVE-2025-7091

CVE-2025-7091 is a high-severity vulnerability in Belkin F9k1122 Firmware with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
CVSS v4: 7.4
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-20150
Weakness: CWE-119
Affected product: Belkin F9k1122 Firmware
Published: 2025-07-06
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2025-7091?: CVE-2025-7091 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-7091 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-7091?: CVE-2025-7091 affects Belkin F9k1122 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-7091?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-7091 have an EU (EUVD) identifier?: Yes. CVE-2025-7091 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-20150.
When was CVE-2025-7091 published?: CVE-2025-7091 was published on 2025-07-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:belkin:f9k1122_firmware:1.00.33:*:*:*:*:*:*:*

More vulnerabilities in Belkin F9k1122 Firmware

CVE-2026-5608 — High (CVSS 8.8): A vulnerability was detected in Belkin F9K1122 1.00.33. Affected is the function formWlanSetup of the file…
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