CVE-2025-22911Public exploitNetwork attack vector

Memory corruption via oversized rootAPmac value

Published Apr 15, 2025 · Updated Apr 16, 2025

Stack-based buffer overflow in Edimax RE11S firmware 1.11 allows remote attackers to corrupt memory via a crafted rootAPmac value. The formiNICbasicREP handler passes the unbounded rootAPmac field to sprintf, writing beyond its 0x380-byte stack space. The unauthenticated HTTP POST must reach the /goform/formiNICbasicREP management endpoint; public evidence demonstrates stack overwrite but not code execution or a device crash.

CVSS severity5.6
Medium
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in Edimax RE11S firmware 1.11 allows remote attackers to corrupt memory via a crafted rootAPmac value. The formiNICbasicREP handler passes the unbounded rootAPmac field to sprintf, writing beyond its 0x380-byte stack space. The unauthenticated HTTP POST must reach the /goform/formiNICbasicREP management endpoint; public evidence demonstrates stack overwrite but not code execution or a device crash.

The record

CVE
CVE-2025-22911
Published
Apr 15, 2025
Updated
Apr 16, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-121
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 16, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.6CISA-ADPCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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