CVE-2021-34597 json
Phoenix Contact: PC Worx/-Express prone to improper input validation vulnerability
published 2021-11-04 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-21247
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 51%
- public exploits
- 0
- none known
Summary
Improper Input Validation vulnerability in PC Worx Automation Suite of Phoenix Contact up to version 1.88 could allow an attacker with a manipulated project file to unpack arbitrary files outside of the selected project directory.
Exploit prediction
0.65% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Affected products
- Phoenix Contact PC Worx
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
cert.vde.com
/en/advisories/VDE-2021-052/
mitigation, third-party-advisory
Sources
- CVE List CVE-2021-34597
- NVD CVE-2021-34597
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