CVE-2021-31223

Security-policy script disclosure via access-check bypass

Published Jul 13, 2021 · Updated Aug 3, 2024

Information disclosure in Stormshield Endpoint Security Evolution before 2.1.0 allows attackers to read security-policy scripts. The server access check fails to stop a malicious program launched on an administration-console computer from reading scripts used for policy selection and responses to detected actions. Exploitation requires a user on that computer to execute the malicious program; the reported consequence is read-only script disclosure.

CVSS severity5.7
Medium
EPSS probability0.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Stormshield Endpoint Security Evolution before 2.1.0 allows attackers to read security-policy scripts. The server access check fails to stop a malicious program launched on an administration-console computer from reading scripts used for policy selection and responses to detected actions. Exploitation requires a user on that computer to execute the malicious program; the reported consequence is read-only script disclosure.

The record

CVE
CVE-2021-31223
Published
Jul 13, 2021
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1204.002
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 13, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.1StormshieldCVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
5.7StormshieldCVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/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.

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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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1204.002User Execution: Malicious File

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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