Is CVE-2021-22777 in the CISA KEV catalog?

No. CVE-2021-22777 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-22777?

CVE-2021-22777 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2021-22777?

CVE-2021-22777 has an EPSS score of 0.94% (57th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-22777?

Upgrade sosafe configurable to 1.8.1 or later.

CVE & CISA-KEV Catalog

CVE-2021-22777

HIGH

7.8

CVSS v3

NVD

Description

A CWE-502: Deserialization of Untrusted Data vulnerability exists that could cause code execution by opening a malicious project file.

CWE-502Deserialization of Untrusted Data

How to fix

Remediation Available

sosafe configurableNVD

Affected:< 1.8.1Fixed in:1.8.1CVE-2021-22777derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploit Intelligence

0.94%probability of exploitation in 30 days

57thpercentile

Moderate risk: more likely to be exploited than 57% of all known CVEs.

References

Vendor Advisory1

download.schneider-electric.com

Related Vulnerabilities

Other CWE-502 (Deserialization of Untrusted Data) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-0669	High	7.2	100%	KEV + Ransom	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-35464	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-29300	Critical	9.8	100%	KEV + Ransom	-
CVE-2025-53770	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2022-47986	Critical	9.8	100%	KEV + Ransom	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.