CVE-2025-2097Public exploitNetwork attack vector

Authenticated memory corruption via oversized loginpass

Published Mar 7, 2025 · Updated Mar 10, 2025

Stack-based buffer overflow in TOTOLINK EX1800T 9.1.0cu.2112_B20220316 allows remote authenticated users to corrupt process memory. The setRptWizardCfg function in /cgi-bin/cstecgi.cgi fails to bound the loginpass argument before placing it in a stack buffer. Access to the management interface and a valid session are required; a crafted request overwrites stack memory, enabling process compromise or a crash.

CVSS severity9.8
Critical
EPSS probability7.21%
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 setRptWizardCfg function in /cgi-bin/cstecgi.cgi fails to bound the loginpass argument before placing it in a stack buffer. Access to the management interface and a valid session are required; a crafted request overwrites stack memory, enabling process compromise or a crash.

The record

CVE
CVE-2025-2097
Published
Mar 7, 2025
Updated
Mar 10, 2025
Vendor
TOTOLINK
Product
EX1800T
Classifications
CWE-119, CWE-787, CWE-121, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 7, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 10, 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

9.0VulDBAV:N/AC:L/Au:S/C:C/I:C/A:C
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
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.8VulDBCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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