CVE-2021-29241: codesys control_for_beaglebone_sl NULL Pointer Dereference
CVSS: 7.5v3.1HighModified
Published 03-05-2021Last modified 29-05-2026
Vulnerability summary
CVE-2021-29241 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in codesys control_for_beaglebone_sl. EPSS estimates a 1.43% chance of exploitation in the next 30 days, higher than 72.6% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (CVE.org)EPSS score
1.43%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 03-05-2021PublishedVulnerability first disclosed.
- 29-05-2026Last modifiedVulnerability information updated.
Description
CODESYS Gateway 3 before 3.5.16.70 has a NULL pointer dereference that may result in a denial of service (DoS).
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 7.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 2 agree
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
1.43%
Chance of exploitation in the next 30 days
Percentile
73%
Versus all other CVEs
30-day change
0.00 pp
From 1.43% on 19-09-2026
19-09-202619-10-2026
EPSS score1.43%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Codesys11 products
- control_for_beaglebone_sl≥ 3.0, < 4.0.1.0
- control_for_empc-a\/imx6_sl≥ 3.0, < 4.0.1.0
- control_for_iot2000_sl≥ 3.0, < 4.0.1.0
- control_for_linux_sl≥ 3.0, < 4.0.1.0
- control_for_pfc100_sl≥ 3.0, < 3.5.16.0
1 vendor · 11 products