CVE-2021-20999: weidmueller iot-gw30_firmware Exposure of Resource to Wrong Sphere
CVSS: 9.8v3.1CriticalModified
Published 13-05-2021Last modified 17-09-2024
Vulnerability summary
CVE-2021-20999 is a critical (CVSS 9.8) Exposure of Resource to Wrong Sphere vulnerability in weidmueller iot-gw30_firmware. EPSS estimates a 0.95% chance of exploitation in the next 30 days, higher than 60.7% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (NVD)EPSS score
0.95%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 13-05-2021PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
In Weidmüller u-controls and IoT-Gateways in versions up to 1.12.1 a network port intended only for device-internal usage is accidentally accessible via external network interfaces. By exploiting this vulnerability the device may be manipulated or the operation may be stopped.
CVSS metrics
3 scores · 2 sources · 2 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSources2 sources · 9.4–9.8
- CVE.orgCNA9.4CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:HDiffers
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
0.95%
Chance of exploitation in the next 30 days
Percentile
61%
Versus all other CVEs
30-day change
0.00 pp
From 0.95% on 21-09-2026
21-09-202621-10-2026
EPSS score0.95%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Weidmueller4 products
- iot-gw30_firmware≥ 1.3.0, < 1.9.1 | ≥ 1.10.0, < 1.10.3 | 1.11.0 | 1.12.1
- iot-gw30-4g-eu_firmware≥ 1.3.0, < 1.9.1 | ≥ 1.10.0, < 1.10.3 | 1.11.0 | 1.12.1
- uc20-wl2000-ac_firmware≥ 1.3.0, < 1.9.1 | ≥ 1.10.0, < 1.10.3 | 1.11.0 | 1.12.1
- uc20-wl2000-iot_firmware≥ 1.3.0, < 1.9.1 | ≥ 1.10.0, < 1.10.3 | 1.11.0 | 1.12.1
Weidmüller4 products
- iot-gw30 (no. 2682620000)≥ 1.3.0, ≤ 1.9.0 | ≥ 1.10.0, ≤ 1.10.2 | ≥ 1.11.0, ≤ 1.12.1
- iot-gw30-4g-eu (no. 2682630000)≥ 1.3.0, ≤ 1.9.0 | ≥ 1.10.0, ≤ 1.10.2 | ≥ 1.11.0, ≤ 1.12.1
- uc20-wl2000-ac (no. 1334950000)≥ 1.3.0, ≤ 1.9.0 | ≥ 1.10.0, ≤ 1.10.2 | ≥ 1.11.0, ≤ 1.12.1
- uc20-wl2000-iot (no. 1334990000)≥ 1.3.0, ≤ 1.9.0 | ≥ 1.10.0, ≤ 1.10.2 | ≥ 1.11.0, ≤ 1.12.1
2 vendors · 8 products