How severe is CVE-2021-22793?

CVE-2021-22793 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-22793 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22793?

CVE-2021-22793 primarily affects Schneider-electric Accusine Pcsp Pfvp Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-22793?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-22793 published?

CVE-2021-22793 was published on 2021-09-02 and last updated on 2026-06-17.

CVE-2021-22793

CVE-2021-22793 is a high-severity vulnerability in Schneider-electric Accusine Pcsp Pfvp Firmware with a CVSS 3.x base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: High (CVSS 3.x base score 7.2)
CVSS v2: 6.5
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Schneider-electric Accusine Pcsp Pfvp Firmware
Published: 2021-09-02
Last modified: 2026-06-17

Description

A CWE-200: Exposure of Sensitive Information to an Unauthorized Actor vulnerability exist in AccuSine PCS+ / PFV+ (Versions prior to V1.6.7) and AccuSine PCSn (Versions prior to V2.2.4) that could allow an authenticated attacker to access the device via FTP protocol.

Frequently asked questions

What is CVE-2021-22793?: A CWE-200: Exposure of Sensitive Information to an Unauthorized Actor vulnerability exist in AccuSine PCS+ / PFV+ (Versions prior to V1.6.7) and AccuSine PCSn (Versions prior to V2.2.4) that could allow an authenticated attacker to access the device via FTP protocol.
How severe is CVE-2021-22793?: CVE-2021-22793 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-22793 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22793?: CVE-2021-22793 primarily affects Schneider-electric Accusine Pcsp Pfvp Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-22793?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-22793 published?: CVE-2021-22793 was published on 2021-09-02 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:schneider-electric:accusine_pcsp_pfvp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:accusine_pcsn_active_harmonic_filter_firmware:*:*:*:*:*:*:*:*

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