CVE-2020-11910Network attack vector

Memory disclosure via ICMPv4 out-of-bounds read

Published Jun 17, 2020 · Updated Sep 30, 2025

Out-of-bounds read in Treck TCP/IP before 6.0.1.66 allows remote attackers to disclose memory through crafted ICMPv4 packets. Public advisories identify the ICMPv4 processing locus but do not disclose which length or offset check permits a read beyond its buffer. No authentication or user interaction is required; affected embedded devices expose memory, with no established write or code-execution impact.

CVSS severity5.3
Medium
EPSS probability10.93%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Treck TCP/IP before 6.0.1.66 allows remote attackers to disclose memory through crafted ICMPv4 packets. Public advisories identify the ICMPv4 processing locus but do not disclose which length or offset check permits a read beyond its buffer. No authentication or user interaction is required; affected embedded devices expose memory, with no established write or code-execution impact.

The record

CVE
CVE-2020-11910
Published
Jun 17, 2020
Updated
Sep 30, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-125
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 17, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 30, 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
5.0NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
5.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A: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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read

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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