CVE-2025-2520

Dereferencing of an uninitialized pointer leads to denial of service.

Description

The Honeywell Experion PKS contains an Uninitialized Variable in the common Epic Platform Analyzer (EPA) communications. An attacker could potentially exploit this vulnerability, leading to a Communication Channel Manipulation, which results in a dereferencing of an uninitialized pointer leading to a denial of service. Honeywell recommends updating to the most recent version of Honeywell Experion PKS: 520.2 TCU9 HF1and 530.1 TCU3 HF1. The affected Experion PKS products are C300 PCNT02, EHB, EHPM, ELMM, Classic ENIM, ETN, FIM4, FIM8, PGM, and RFIM. The Experion PKS versions affected are from 520.1 through 520.2 TCU9 and from 530 through 530 TCU3.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.04%
Affected: Honeywell C300 PCNT02
Affected: Honeywell EHB
Affected: Honeywell EHPM
Affected: Honeywell ELMM
Affected: Honeywell Classic ENIM
Affected: Honeywell ETN
Affected: Honeywell FIM4
Affected: Honeywell FIM8
Affected: Honeywell PGM
Affected: Honeywell RFIM
Published at:
Updated at:

References

Link Tags
https://process.honeywell.com/

Frequently Asked Questions

What is the severity of CVE-2025-2520?
CVE-2025-2520 has been scored as a high severity vulnerability.
How to fix CVE-2025-2520?
To fix CVE-2025-2520, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-2520 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-2520 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-2520?
CVE-2025-2520 affects Honeywell C300 PCNT02, Honeywell EHB, Honeywell EHPM, Honeywell ELMM, Honeywell Classic ENIM, Honeywell ETN, Honeywell FIM4, Honeywell FIM8, Honeywell PGM, Honeywell RFIM.
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