CVE-2021-33842 json
Circutor SGE-PLC1000 improper authentication
published 2021-06-09 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-20516
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 37%
- public exploits
- 0
- none known
Summary
Improper Authentication vulnerability in the cookie parameter of Circutor SGE-PLC1000 firmware version 0.9.2b allows an attacker to perform operations as an authenticated user. In order to exploit this vulnerability, the attacker must be within the network where the device affected is located.
Exploit prediction
0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.7 | AV:A/AC:L/Au:S/C:C/I:C/A:C |
Affected products
- Circutor SGE-PLC1000
Classification
- Weakness
-
- CWE-565 Reliance on Cookies without Validation and Integrity Checking
References
Sources
- CVE List CVE-2021-33842
- NVD CVE-2021-33842
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