CVE-2020-5754Public exploitNetwork attack vector

Memory disclosure and crash via untyped JSON lists

Published Jun 15, 2020 · Updated Aug 4, 2024

Type confusion in wrUrl.dll in Webroot SecureAnywhere before 9.0.28.48 allows remote attackers to read memory or crash the service. OP 1 traverses attacker-supplied DATA elements without checking that each is a JSON object, then treats a nested list as a URL-bearing object and dereferences its following element as an encoded pointer. An unauthenticated request to the listening TCP port can return process memory or interrupt protection by crashing the Webroot service; no data modification is reported.

CVSS severity9.1
Critical
EPSS probability1.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Type confusion in wrUrl.dll in Webroot SecureAnywhere before 9.0.28.48 allows remote attackers to read memory or crash the service. OP 1 traverses attacker-supplied DATA elements without checking that each is a JSON object, then treats a nested list as a URL-bearing object and dereferences its following element as an encoded pointer. An unauthenticated request to the listening TCP port can return process memory or interrupt protection by crashing the Webroot service; no data modification is reported.

The record

CVE
CVE-2020-5754
Published
Jun 15, 2020
Updated
Aug 4, 2024
Vendor
Webroot
Product
Webroot SecureAnywhere
Classifications
CWE-843, T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record 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=All versions prior to version v9.0.28.48

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Webroot · Webroot SecureAnywhereversion=All versions prior to version v9.0.28.48

Published CVSS scores

9.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
6.4NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:P

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-843Access of Resource Using Incompatible Type ('Type Confusion')
T1210Exploitation of Remote Services

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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