How severe is CVE-2022-40977?

CVE-2022-40977 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2022-40977 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-40977?

CVE-2022-40977 primarily affects Pilz Pasvisu. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-40977?

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-2022-40977 published?

CVE-2022-40977 was published on 2022-11-24 and last updated on 2026-06-17.

CVE-2022-40977

CVE-2022-40977 is a high-severity vulnerability in Pilz Pasvisu with a CVSS 3.x base score of 7.5. 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-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Pilz Pasvisu
Published: 2022-11-24
Last modified: 2026-06-17

Description

A path traversal vulnerability was discovered in Pilz PASvisu Server before 1.12.0. An unauthenticated remote attacker could use a zipped, malicious configuration file to trigger arbitrary file writes ('zip-slip'). File writes do not affect confidentiality or availability.

Frequently asked questions

What is CVE-2022-40977?: A path traversal vulnerability was discovered in Pilz PASvisu Server before 1.12.0. An unauthenticated remote attacker could use a zipped, malicious configuration file to trigger arbitrary file writes ('zip-slip'). File writes do not affect confidentiality or availability.
How severe is CVE-2022-40977?: CVE-2022-40977 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2022-40977 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-40977?: CVE-2022-40977 primarily affects Pilz Pasvisu. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-40977?: 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-2022-40977 published?: CVE-2022-40977 was published on 2022-11-24 and last updated on 2026-06-17.

References

https://cert.vde.com/en/advisories/VDE-2022-033/

Affected products (8)

cpe:2.3:a:pilz:pasvisu:*:*:*:*:*:*:*:*
cpe:2.3:o:pilz:pmi_v507_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:pilz:pmi_v512_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:pilz:pmi_v704e_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:pilz:pmi_v707e_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:pilz:pmi_v807_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:pilz:pmi_v812_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:pilz:pmi_v815_firmware:*:*:*:*:*:*:*:*

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