CVE-2025-28024Public exploitNetwork attack vector

Memory corruption via unchecked CGI input copy

Published Apr 22, 2025 · Updated Apr 23, 2025

Buffer overflow in cstecgi.cgi in TOTOLINK A810R 4.1.2cu.5182_B20201026 allows remote attackers to corrupt process memory. The CGI component copies attacker-controlled input into a fixed-size buffer without checking its length, but the public record does not identify the function or request parameter. Unauthenticated network access is sufficient, and the public disclosure does not state whether its proof of concept causes a crash or redirects execution.

CVSS severity9.8
Critical
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in cstecgi.cgi in TOTOLINK A810R 4.1.2cu.5182_B20201026 allows remote attackers to corrupt process memory. The CGI component copies attacker-controlled input into a fixed-size buffer without checking its length, but the public record does not identify the function or request parameter. Unauthenticated network access is sufficient, and the public disclosure does not state whether its proof of concept causes a crash or redirects execution.

The record

CVE
CVE-2025-28024
Published
Apr 22, 2025
Updated
Apr 23, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 22, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 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

9.8CISA-ADPCVSS: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.

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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-120Buffer Copy without Checking Size of Input ('Classic 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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