How severe is CVE-2015-6491?

CVE-2015-6491 has a CVSS 2.0 base score of 4.0, rated medium severity.

Is CVE-2015-6491 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-6491?

CVE-2015-6491 primarily affects Rockwellautomation Micrologix 1100 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-6491?

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

When was CVE-2015-6491 published?

CVE-2015-6491 was published on 2015-10-28 and last updated on 2026-06-17.

CVE-2015-6491

CVE-2015-6491 is a medium-severity vulnerability in Rockwellautomation Micrologix 1100 Firmware with a CVSS 2.0 base score of 4.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 4.0)
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Rockwellautomation Micrologix 1100 Firmware
Published: 2015-10-28
Last modified: 2026-06-17

Description

Allen-Bradley MicroLogix 1100 devices before B FRN 15.000 and 1400 devices before B FRN 15.003 allow remote authenticated users to insert the content of an arbitrary file into a FRAME element via unspecified vectors.

Frequently asked questions

What is CVE-2015-6491?: Allen-Bradley MicroLogix 1100 devices before B FRN 15.000 and 1400 devices before B FRN 15.003 allow remote authenticated users to insert the content of an arbitrary file into a FRAME element via unspecified vectors.
How severe is CVE-2015-6491?: CVE-2015-6491 has a CVSS 2.0 base score of 4.0, rated medium severity.
Is CVE-2015-6491 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-6491?: CVE-2015-6491 primarily affects Rockwellautomation Micrologix 1100 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-6491?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-6491 published?: CVE-2015-6491 was published on 2015-10-28 and last updated on 2026-06-17.

References

https://ics-cert.us-cert.gov/advisories/ICSA-15-300-03

Affected products (2)

cpe:2.3:o:rockwellautomation:micrologix_1100_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:micrologix_1400_firmware:*:*:*:*:*:*:*:*

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