CVE-2021-45089

Administration-console access denial

Published Dec 21, 2021 · Updated Aug 4, 2024

Incorrect access control in Stormshield Endpoint Security 2.0.0 through 2.1.1 allows context-dependent attackers to deny access to console functions. Stormshield has not published the flawed access-check locus or the operation it performs incorrectly. Exploitation requires a malicious program to be run by a user on a machine hosting the console, after which some functions become unavailable to all console users.

CVSS severity5.2
Medium
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect access control in Stormshield Endpoint Security 2.0.0 through 2.1.1 allows context-dependent attackers to deny access to console functions. Stormshield has not published the flawed access-check locus or the operation it performs incorrectly. Exploitation requires a malicious program to be run by a user on a machine hosting the console, after which some functions become unavailable to all console users.

The record

CVE
CVE-2021-45089
Published
Dec 21, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1204.002
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 21, 2021CVE 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.2StormshieldCVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
2.3NIST NVDAV:A/AC:M/Au:S/C:N/I:N/A:P
5.2NIST NVDCVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
4.5StormshieldCVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C

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)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1204.002Malicious File

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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