How severe is CVE-2019-10952?

CVE-2019-10952 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-10952 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-10952?

CVE-2019-10952 primarily affects Rockwellautomation Compactlogix 5370 L1 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-10952?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2019-10952 published?

CVE-2019-10952 was published on 2019-05-01 and last updated on 2026-06-17.

CVE-2019-10952

CVE-2019-10952 is a critical-severity vulnerability in Rockwellautomation Compactlogix 5370 L1 Firmware with a CVSS 3.x base score of 9.8. 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-400.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 10% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Rockwellautomation Compactlogix 5370 L1 Firmware
Published: 2019-05-01
Last modified: 2026-06-17

Description

An attacker could send a crafted HTTP/HTTPS request to render the web server unavailable and/or lead to remote code execution caused by a stack-based buffer overflow vulnerability. A cold restart is required for recovering CompactLogix 5370 L1, L2, and L3 Controllers, Compact GuardLogix 5370 controllers, and Armor Compact GuardLogix 5370 Controllers Versions 20 - 30 and earlier.

Frequently asked questions

What is CVE-2019-10952?: An attacker could send a crafted HTTP/HTTPS request to render the web server unavailable and/or lead to remote code execution caused by a stack-based buffer overflow vulnerability. A cold restart is required for recovering CompactLogix 5370 L1, L2, and L3 Controllers, Compact GuardLogix 5370 controllers, and Armor Compact GuardLogix 5370 Controllers Versions 20 - 30 and earlier.
How severe is CVE-2019-10952?: CVE-2019-10952 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-10952 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-10952?: CVE-2019-10952 primarily affects Rockwellautomation Compactlogix 5370 L1 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-10952?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2019-10952 published?: CVE-2019-10952 was published on 2019-05-01 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:o:rockwellautomation:compactlogix_5370_l1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:compactlogix_5370_l2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:compactlogix_5370_l3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:armor_compact_guardlogix_5370_firmware:*:*:*:*:*:*:*:*

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