How severe is CVE-2019-13542?

CVE-2019-13542 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-13542 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-13542?

CVE-2019-13542 primarily affects Codesys Control For Beaglebone. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-13542?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-13542 published?

CVE-2019-13542 was published on 2019-09-17 and last updated on 2026-06-17.

CVE-2019-13542

CVE-2019-13542 is a medium-severity vulnerability in Codesys Control For Beaglebone with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Codesys Control For Beaglebone
Published: 2019-09-17
Last modified: 2026-06-17

Description

3S-Smart Software Solutions GmbH CODESYS V3 OPC UA Server, all versions 3.5.11.0 to 3.5.15.0, allows an attacker to send crafted requests from a trusted OPC UA client that cause a NULL pointer dereference, which may trigger a denial-of-service condition.

Frequently asked questions

What is CVE-2019-13542?: 3S-Smart Software Solutions GmbH CODESYS V3 OPC UA Server, all versions 3.5.11.0 to 3.5.15.0, allows an attacker to send crafted requests from a trusted OPC UA client that cause a NULL pointer dereference, which may trigger a denial-of-service condition.
How severe is CVE-2019-13542?: CVE-2019-13542 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-13542 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-13542?: CVE-2019-13542 primarily affects Codesys Control For Beaglebone. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-13542?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-13542 published?: CVE-2019-13542 was published on 2019-09-17 and last updated on 2026-06-17.

References

https://www.us-cert.gov/ics/advisories/icsa-19-255-04

Affected products (10)

cpe:2.3:a:codesys:control_for_beaglebone:*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:control_for_empc-a\/imx6:*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:control_for_iot2000:*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:control_for_pfc100:*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:control_for_pfc200:*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:control_for_raspberry_pi:*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:control_rte:*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:control_win:*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:linux:*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:runtime_system_toolkit:*:*:*:*:*:*:*:*

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Other CWE-476 (NULL Pointer Dereference) vulnerabilities

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CVE-2010-2495 — Critical (CVSS 10.0): The pppol2tp_xmit function in drivers/net/pppol2tp.c in the L2TP implementation in the Linux kernel before 2.6.34 does…
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CVE-2026-31657 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: batman-adv: hold claim backbone gateways by…
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