How severe is CVE-2021-31221?

CVE-2021-31221 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2021-31221 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-31221?

CVE-2021-31221 affects Stormshield Endpoint Security. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-31221?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-31221 published?

CVE-2021-31221 was published on 2021-07-13 and last updated on 2026-06-17.

CVE-2021-31221

CVE-2021-31221 is a medium-severity vulnerability in Stormshield Endpoint Security with a CVSS 3.x base score of 5.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.7)
CVSS v2: 2.9
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Stormshield Endpoint Security
Published: 2021-07-13
Last modified: 2026-06-17

Description

SES Evolution before 2.1.0 allows deleting some parts of a security policy by leveraging access to a computer having the administration console installed.

Frequently asked questions

What is CVE-2021-31221?: SES Evolution before 2.1.0 allows deleting some parts of a security policy by leveraging access to a computer having the administration console installed.
How severe is CVE-2021-31221?: CVE-2021-31221 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2021-31221 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-31221?: CVE-2021-31221 affects Stormshield Endpoint Security. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-31221?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-31221 published?: CVE-2021-31221 was published on 2021-07-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:stormshield:endpoint_security:*:*:*:*:*:*:*:*

More vulnerabilities in Stormshield Endpoint Security

CVE-2021-45090 — Critical (CVSS 9.8): Stormshield Endpoint Security before 2.1.2 allows remote code execution.
CVE-2021-31225 — High (CVSS 7.3): SES Evolution before 2.1.0 allows deleting some resources not currently in use by any security policy by leveraging…
CVE-2021-35957 — Medium (CVSS 6.7): Stormshield Endpoint Security Evolution 2.0.0 through 2.0.2 does not accomplish the intended defense against local…
CVE-2022-4304 — Medium (CVSS 5.9): A timing based side channel exists in the OpenSSL RSA Decryption implementation which could be sufficient to recover a…
CVE-2021-31223 — Medium (CVSS 5.7): SES Evolution before 2.1.0 allows reading some parts of a security policy by leveraging access to a computer having the…
CVE-2021-31222 — Medium (CVSS 5.7): SES Evolution before 2.1.0 allows updating some parts of a security policy by leveraging access to a computer having…

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