CVE-2021-29241
HighUpdated
Published: 03 May 2021
Published
03 May 2021
Modified
29 May 2026
KEV Added
—
Patch
—
CVSS Score v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.0041
61.6th percentile
Risk Priority
15
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-29241 is a high-severity NULL Pointer Dereference (CWE-476) vulnerability in Codesys Edge Gateway. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 38.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-15880
Vulnerability details
CODESYS Gateway 3 before 3.5.16.70 has a NULL pointer dereference that may result in a denial of service (DoS).
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
codesys
control for beaglebone sl
3.0 — 4.0.1.0
codesys
control for empc-a\/imx6 sl
3.0 — 4.0.1.0
codesys
control for iot2000 sl
3.0 — 4.0.1.0
codesys
control for linux sl
3.0 — 4.0.1.0
codesys
control for pfc100 sl
3.0 — 3.5.16.0
codesys
control for pfc200 sl
3.0 — 3.5.16.0
codesys
control for raspberry pi sl
3.0 — 4.0.1.0
codesys
control runtime system toolkit
3.0 — 3.5.16.70
codesys
development system
3.0 — 3.5.16.70
codesys
edge gateway
3.0 — 3.5.16.70 · 3.0 — 4.1.0.0
+1 more product configuration(s) — see NVD for full list
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.