CVE-2025-14136Public exploitNetwork attack vector

Device crash via unchecked client-name copy

Published Dec 6, 2025 · Updated Dec 8, 2025

Stack-based buffer overflow in Linksys RE6250, RE6300, RE6350, RE6500, RE7000, and RE9000 allows remote authenticated users to crash the device. RE2000v2Repeater_get_wired_clientlist_setClientsName in mod_form.so copies an oversized clientsname_0 value into a stack local without checking its length, overwriting the return address. A valid management session is required; the demonstrated request persistently interrupts the extender's service, while arbitrary code execution has not been demonstrated.

CVSS severity8.7
High
EPSS probability1.12%
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 Linksys RE6250, RE6300, RE6350, RE6500, RE7000, and RE9000 allows remote authenticated users to crash the device. RE2000v2Repeater_get_wired_clientlist_setClientsName in mod_form.so copies an oversized clientsname_0 value into a stack local without checking its length, overwriting the return address. A valid management session is required; the demonstrated request persistently interrupts the extender's service, while arbitrary code execution has not been demonstrated.

The record

CVE
CVE-2025-14136
Published
Dec 6, 2025
Updated
Dec 8, 2025
Vendor
Linksys
Product
RE6250
Classifications
CWE-121, CWE-787, CWE-119, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 6, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 8, 2025Record 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0.013.001
  2. Affected versionversion=1.0.04.001
  3. Affected versionversion=1.0.04.002
  4. Affected versionversion=1.1.05.003
  5. Affected versionversion=1.2.07.001

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Linksys · RE6250version=1.0.013.001; version=1.0.04.001; version=1.0.04.002; version=1.1.05.003; version=1.2.07.001
Linksys · RE7000version=1.0.013.001; version=1.0.04.001; version=1.0.04.002; version=1.1.05.003; version=1.2.07.001
Linksys · RE9000version=1.0.013.001; version=1.0.04.001; version=1.0.04.002; version=1.1.05.003; version=1.2.07.001
Linksys · RE6300version=1.0.013.001; version=1.0.04.001; version=1.0.04.002; version=1.1.05.003; version=1.2.07.001
Linksys · RE6350version=1.0.013.001; version=1.0.04.001; version=1.0.04.002; version=1.1.05.003; version=1.2.07.001
Linksys · RE6500version=1.0.013.001; version=1.0.04.001; version=1.0.04.002; version=1.1.05.003; version=1.2.07.001

Published CVSS scores

8.8VulDB CNACVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.0VulDB CNAAV:N/AC:L/Au:S/C:C/I:C/A:C
7.4VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
8.8VulDB CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.7VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
CWE-787Out-of-bounds Write
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1499.004Application or System Exploitation

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

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