How severe is CVE-2023-37557?

CVE-2023-37557 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-2023-37557 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-37557?

CVE-2023-37557 primarily affects Codesys Control For Beaglebone Sl. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-37557?

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

When was CVE-2023-37557 published?

CVE-2023-37557 was published on 2023-08-03 and last updated on 2026-06-17.

CVE-2023-37557

CVE-2023-37557 is a medium-severity vulnerability in Codesys Control For Beaglebone Sl 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-787.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Codesys Control For Beaglebone Sl
Published: 2023-08-03
Last modified: 2026-06-17

Description

After successful authentication as a user in multiple Codesys products in multiple versions, specific crafted remote communication requests can cause the CmpAppBP component to overwrite a heap-based buffer, which can lead to a denial-of-service condition.

Frequently asked questions

What is CVE-2023-37557?: After successful authentication as a user in multiple Codesys products in multiple versions, specific crafted remote communication requests can cause the CmpAppBP component to overwrite a heap-based buffer, which can lead to a denial-of-service condition.
How severe is CVE-2023-37557?: CVE-2023-37557 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-2023-37557 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-37557?: CVE-2023-37557 primarily affects Codesys Control For Beaglebone Sl. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-37557?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-37557 published?: CVE-2023-37557 was published on 2023-08-03 and last updated on 2026-06-17.

References

https://cert.vde.com/en/advisories/VDE-2023-019/

Affected products (16)

cpe:2.3:a:codesys:control_for_beaglebone_sl:*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:control_for_empc-a\/imx6_sl:*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:control_for_iot2000_sl:*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:control_for_linux_sl:*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:control_for_pfc100_sl:*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:control_for_pfc200_sl:*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:control_for_plcnext_sl:*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:control_for_raspberry_pi_sl:*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:control_for_wago_touch_panels_600_sl:*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:control_rte_sl:*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:control_rte_sl_\(for_beckhoff_cx\):*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:control_runtime_system_toolkit:*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:control_win_sl:*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:development_system:*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:hmi:*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:safety_sil2:*:*:*:*:*:*:*:*

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