CVE-2021-21001: wago 750-8202_firmware Path Traversal
CVSS: 9.1v3.1CriticalAnalyzed
Published 24-05-2021Last modified 16-09-2024
Vulnerability summary
CVE-2021-21001 is a critical (CVSS 9.1) Path Traversal vulnerability in wago 750-8202_firmware. EPSS estimates a 1.13% chance of exploitation in the next 30 days, higher than 65.9% of scored vulnerabilities.
CVSS score
9.1/10
010
Critical · v3.1 (CVE.org)EPSS score
1.13%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 24-05-2021PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
On WAGO PFC200 devices in different firmware versions with special crafted packets an authorised attacker with network access to the device can access the file system with higher privileges.
CVSS metrics
3 scores · 2 sources · 2 versionsCritical 9.1Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:HSources2 sources · 6.5–9.1
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NDiffers
Medium 4.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:P/I:N/A:NSourcesSingle source
EPSS trend
Probability
1.13%
Chance of exploitation in the next 30 days
Percentile
66%
Versus all other CVEs
30-day change
0.00 pp
From 1.13% on 19-09-2026
19-09-202619-10-2026
EPSS score1.13%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Wago29 products
- 750-8202_firmware< 03.06.19_\(18\)
- 750-8203_firmware< 03.06.19_\(18\)
- 750-8204_firmware< 03.06.19_\(18\)
- 750-8206_firmware< 03.06.19_\(18\)
- 750-8207_firmware< 03.06.19_\(18\)
1 vendor · 29 products