CVE-2022-25414Network attack vector

Unauthenticated memory corruption via crafted NPTR

Published Feb 22, 2022 · Updated Aug 3, 2024

Stack overflow in Tenda AC9 firmware 15.03.2.21_cn allows remote attackers to corrupt memory via a crafted NPTR parameter. The published record identifies NPTR as the triggering input but does not disclose the request handler or unsafe copy operation that overruns the stack. The network-reachable path requires no authentication or user interaction; public evidence does not establish whether exploitation causes a crash or code execution.

CVSS severity9.8
Critical
EPSS probability10.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack overflow in Tenda AC9 firmware 15.03.2.21_cn allows remote attackers to corrupt memory via a crafted NPTR parameter. The published record identifies NPTR as the triggering input but does not disclose the request handler or unsafe copy operation that overruns the stack. The network-reachable path requires no authentication or user interaction; public evidence does not establish whether exploitation causes a crash or code execution.

The record

CVE
CVE-2022-25414
Published
Feb 22, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 22, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

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

10.0NIST NVDAV:N/AC:L/Au:N/C:C/I:C/A:C
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write

Public exploit references

No public exploit references are available in this record.

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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