How severe is CVE-2022-25596?

CVE-2022-25596 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-25596 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-25596?

CVE-2022-25596 affects Asus Rt-ac86u Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-25596?

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.

When was CVE-2022-25596 published?

CVE-2022-25596 was published on 2022-04-07 and last updated on 2026-06-17.

CVE-2022-25596

CVE-2022-25596 is a high-severity vulnerability in Asus Rt-ac86u 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-787.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 5.8
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Asus Rt-ac86u Firmware
Published: 2022-04-07
Last modified: 2026-06-17

Description

ASUS RT-AC56U’s configuration function has a heap-based buffer overflow vulnerability due to insufficient validation for the decryption parameter length, which allows an unauthenticated LAN attacker to execute arbitrary code, perform arbitrary operations and disrupt service.

Frequently asked questions

What is CVE-2022-25596?: ASUS RT-AC56U’s configuration function has a heap-based buffer overflow vulnerability due to insufficient validation for the decryption parameter length, which allows an unauthenticated LAN attacker to execute arbitrary code, perform arbitrary operations and disrupt service.
How severe is CVE-2022-25596?: CVE-2022-25596 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-25596 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-25596?: CVE-2022-25596 affects Asus Rt-ac86u Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-25596?: 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.
When was CVE-2022-25596 published?: CVE-2022-25596 was published on 2022-04-07 and last updated on 2026-06-17.

References

https://www.twcert.org.tw/tw/cp-132-5793-4f9d3-1.html

Affected products (1)

cpe:2.3:o:asus:rt-ac86u_firmware:3.0.0.4.386.45956:*:*:*:*:*:*:*

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