CVE-2023-3759Public exploitNetwork attack vector

Remote identity impersonation via undisclosed permission flaw

Published Jul 19, 2023 · Updated Aug 2, 2024

Authorization failure in InterGard do Brasil SGS 8.7.0 allows remote authenticated users to impersonate another identity. The public record does not identify the affected function, request, permission check, or attacker-controlled input. Low-privileged access is required, and the reported consequence is limited to acting under another identity; further effects are undisclosed.

CVSS severity9.8
Critical
EPSS probability0.89%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization failure in InterGard do Brasil SGS 8.7.0 allows remote authenticated users to impersonate another identity. The public record does not identify the affected function, request, permission check, or attacker-controlled input. Low-privileged access is required, and the reported consequence is limited to acting under another identity; further effects are undisclosed.

The record

CVE
CVE-2023-3759
Published
Jul 19, 2023
Updated
Aug 2, 2024
Vendor
InterGard do Brasil
Product
SGS
Classifications
CWE-275
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 19, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=8.7.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

InterGard do Brasil · SGSversion=8.7.0

Published CVSS scores

6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P
9.8NVDCVSS: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.

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-275Permission Issues

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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