CVE-2025-2369Public exploitNetwork attack vector

Authenticated memory corruption via unbounded password field

Published Mar 17, 2025 · Updated Mar 17, 2025

Stack-based buffer overflow in TOTOLINK EX1800T 9.1.0cu.2112_B20220316 allows remote authenticated users to corrupt process memory. The setPasswordCfg handler in /cgi-bin/cstecgi.cgi fails to bound the admpass request value before placing it in a stack buffer, allowing an out-of-bounds write. Management-interface credentials are required, and the public record does not establish whether exploitation progresses beyond process memory corruption.

CVSS severity9.8
Critical
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 TOTOLINK EX1800T 9.1.0cu.2112_B20220316 allows remote authenticated users to corrupt process memory. The setPasswordCfg handler in /cgi-bin/cstecgi.cgi fails to bound the admpass request value before placing it in a stack buffer, allowing an out-of-bounds write. Management-interface credentials are required, and the public record does not establish whether exploitation progresses beyond process memory corruption.

The record

CVE
CVE-2025-2369
Published
Mar 17, 2025
Updated
Mar 17, 2025
Vendor
TOTOLINK
Product
EX1800T
Classifications
CWE-119, CWE-121, CWE-787, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 17, 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?

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

  1. Affected versionversion=9.1.0cu.2112_B20220316

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

TOTOLINK · EX1800Tversion=9.1.0cu.2112_B20220316

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.0VulDBAV:N/AC:L/Au:S/C:C/I:C/A:C
8.8VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8VulDBCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.7VulDBCVSS: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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-121Stack-based Buffer Overflow
CWE-787Out-of-bounds Write
T1190Exploit Public-Facing Application

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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