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CVE record · CVE-2025-2520

Dereferencing of an uninitialized pointer leads to denial of service.

CVSS 7.5 HighEPSS 0.0042 · 36th percentile

Published by the CVE Program (CNA: Honeywell) at 10 Jul 2025, 19:54 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Honeywell C300 PCNT02
  • affected 520.1 to 520.2 TCU9, inclusive semver
  • affected 530 to 530 TCU3, inclusive semver
Other versions: unaffected
Honeywell EHB
  • affected 520.1 to 520.2 TCU9, inclusive semver
  • affected 530 to 530 TCU3, inclusive semver
Other versions: unaffected
Honeywell EHPM
  • affected 520.1 to 520.2 TCU9, inclusive semver
  • affected 530 to 530 TCU3, inclusive semver
Other versions: unaffected
Honeywell ELMM
  • affected 520.1 to 520.2 TCU9, inclusive semver
  • affected 530 to 530 TCU3, inclusive semver
Other versions: unaffected
Honeywell Classic ENIM
  • affected 520.1 to 520.2 TCU9, inclusive semver
  • affected 530 to 530 TCU3, inclusive semver
Other versions: unaffected
Honeywell ETN
  • affected 520.1 to 520.2 TCU9, inclusive semver
  • affected 530 to 530 TCU3, inclusive semver
Other versions: unaffected
Honeywell FIM4
  • affected 520.1 to 520.2 TCU9, inclusive semver
  • affected 530 to 530 TCU3, inclusive semver
Other versions: unaffected
Honeywell FIM8
  • affected 520.1 to 520.2 TCU9, inclusive semver
  • affected 530 to 530 TCU3, inclusive semver
Other versions: unaffected
Honeywell PGM
  • affected 520.1 to 520.2 TCU9, inclusive semver
  • affected 530 to 530 TCU3, inclusive semver
Other versions: unaffected
Honeywell RFIM
  • affected 520.1 to 520.2 TCU9, inclusive semver
  • affected 530 to 530 TCU3, inclusive semver
Other versions: unaffected
Identifiers
CVE-2025-2520
CNA
Honeywell
Weakness (CWE)
CWE-457
Tags
Published
10 Jul 2025
Updated
4 Aug 2025

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CNA (Honeywell)
  • CISA KEV Not listed.
  • EPSS 0.0042, the 36th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 10 Jul 2025. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.