CVE-2024-8773Network attack vector

Traffic interception and modification via encryption downgrade

Published Mar 24, 2025 · Updated Mar 24, 2025

Protocol downgrade in Simple S.A. SIMPLE.ERP 6.20 through 6.30 allows remote attackers to intercept and modify database traffic. The client accepts an MS SQL server's downgrade request and continues the session without transport encryption instead of enforcing encrypted communication. The attacker must control or impersonate the database server; exposed traffic can be read or altered in transit, while availability is unaffected.

CVSS severity8.3
High
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Protocol downgrade in Simple S.A. SIMPLE.ERP 6.20 through 6.30 allows remote attackers to intercept and modify database traffic. The client accepts an MS SQL server's downgrade request and continues the session without transport encryption instead of enforcing encrypted communication. The attacker must control or impersonate the database server; exposed traffic can be read or altered in transit, while availability is unaffected.

The record

CVE
CVE-2024-8773
Published
Mar 24, 2025
Updated
Mar 24, 2025
Vendor
Simple S.A.
Product
SIMPLE.ERP
Classifications
CWE-757, CAPEC-569, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 24, 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=6.20 <[email protected]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Simple S.A. · SIMPLE.ERPversion=6.20 <[email protected]

Published CVSS scores

8.3CERT.PLCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA: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.

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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 exploitUnconfirmed

Weakness, pattern, technique

CWE-757Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')
CAPEC-569Collect Data as Provided by Users
T1557Adversary-in-the-Middle

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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