CVE-2021-29241
high
CVSS v3
7.5
CVSS v4 NEW
—
VIR risk
7.5
Description
CODESYS Gateway 3 before 3.5.16.70 has a NULL pointer dereference that may result in a denial of service (DoS).
Predictions
Exploit likelihood
83%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| codesys | control_for_beaglebone_sl | {"startIncluding":"3.0","endExcluding":"4.0.1.0"} | 4.0.1.0 |
| codesys | control_for_empc-a\/imx6_sl | {"startIncluding":"3.0","endExcluding":"4.0.1.0"} | 4.0.1.0 |
| codesys | control_for_iot2000_sl | {"startIncluding":"3.0","endExcluding":"4.0.1.0"} | 4.0.1.0 |
| codesys | control_for_linux_sl | {"startIncluding":"3.0","endExcluding":"4.0.1.0"} | 4.0.1.0 |
| codesys | control_for_pfc100_sl | {"startIncluding":"3.0","endExcluding":"3.5.16.0"} | 3.5.16.0 |
| codesys | control_for_pfc200_sl | {"startIncluding":"3.0","endExcluding":"3.5.16.0"} | 3.5.16.0 |
| codesys | control_for_raspberry_pi_sl | {"startIncluding":"3.0","endExcluding":"4.0.1.0"} | 4.0.1.0 |
| codesys | control_runtime_system_toolkit | {"startIncluding":"3.0","endExcluding":"3.5.16.70"} | 3.5.16.70 |
| codesys | development_system | {"startIncluding":"3.0","endExcluding":"3.5.16.70"} | 3.5.16.70 |
| codesys | edge_gateway | {"startIncluding":"3.0","endExcluding":"3.5.16.70"} | 3.5.16.70 |
| codesys | edge_gateway | {"startIncluding":"3.0","endExcluding":"4.1.0.0"} | 4.1.0.0 |
| codesys | gateway | {"startIncluding":"3.0","endExcluding":"3.5.16.70"} | 3.5.16.70 |
References
CWEs
CWE-476
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.