CVE-2025-2522— Lack of buffer clearing before reuse may result in incorrect system behavior.
Quick assessment
Affected
Honeywell C300 PCNT02
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Honeywell Experion Server是美国霍尼韦尔（Honeywell）公司的一款高性能工业控制系统服务器，主要用于 Experion Process Knowledge System（PKS）平台。 Honeywell Experion Server PKS 520.1至520.2 TCU9 HF1和530至530 TCU3版本和OneWireless WDM 322.1至322.4和330.1至330.3版本存在安全漏洞，该漏洞源于资源中敏感信息暴露，可能导致系统行为异常。
Possible ATT&CK Techniques 1 AI
T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2025-2522
Vulnerability Information
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Vulnerability Title
Lack of buffer clearing before reuse may result in incorrect system behavior.
Source: CVE Program / CVE List V5
Vulnerability Description
The Honeywell Experion PKS and OneWireless WDM
contains Sensitive Information in Resource vulnerability in the component Control Data Access (CDA). An attacker could potentially exploit this vulnerability, leading to a Communication Channel Manipulation, which could result in buffer reuse which may cause incorrect system behavior.
Honeywell also recommends updating to the most recent version of
Honeywell Experion PKS:520.2 TCU9 HF1 and 530.1 TCU3 HF1 and OneWireless: 322.5 and 331.1.
The affected Experion PKS products are
C300, FIM4, FIM8, UOC, CN100, HCA, C300PM, and C200E. The Experion PKS versions affected are 520.1 before
520.2 TCU9 HF1 and 530 before 530 TCU3. The OneWireless WDM affected versions are 322.1 through 322.4 and 330.1 through 330.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在释放前未清除敏感信息
Source: CVE Program / CVE List V5
Vulnerability Title
Honeywell Experion Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Honeywell Experion Server是美国霍尼韦尔（Honeywell）公司的一款高性能工业控制系统服务器，主要用于 Experion Process Knowledge System（PKS）平台。 Honeywell Experion Server PKS 520.1至520.2 TCU9 HF1和530至530 TCU3版本和OneWireless WDM 322.1至322.4和330.1至330.3版本存在安全漏洞，该漏洞源于资源中敏感信息暴露，可能导致系统行为异常。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Honeywell | C300 PCNT02 | 520.1 ~ 520.2 TCU9 | - |
|
| Honeywell | C300 PCNT05 | 520.1 ~ 520.2 TCU9 | - |
|
| Honeywell | FIM4 | 520.1 ~ 520.2 TCU9 | - |
|
| Honeywell | FIM8 | 520.1 ~ 520.2 TCU9 | - |
|
| Honeywell | UOC | 520.1 ~ 520.2 TCU9 | - |
|
| Honeywell | CN100 | 520.1 ~ 520.2 TCU9 | - |
|
| Honeywell | HCA | 520.1 ~ 520.2 TCU9 | - |
|
| Honeywell | C300PM | 520.1 ~ 520.2 TCU9 | - |
|
| Honeywell | C200E | 520.1 ~ 520.2 TCU9 | - |
|
| Honeywell | Wireless Device Manager | 322.1 ~ 322.4 | - |
|
II. Public POCs for CVE-2025-2522
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Pages for CVE-2025-2522 (1)
Same Patch Batch · Honeywell · 2025-07-10 · 6 CVEs total
| CVE-2025-2523 | 9.4 CRITICAL | Lack of buffer clearing before reuse may result in incorrect system behavior. |
| CVE-2025-2521 | 8.6 HIGH | Lack of indexes’ validation against buffer borders leads to remote code execution. |
| CVE-2025-3947 | 8.2 HIGH | Integer underflow during processing of short network packets in CDA FTEB responder |
| CVE-2025-3946 | 8.2 HIGH | Incorrect response generation during FTEB protocol processing |
| CVE-2025-2520 | 7.5 HIGH | Dereferencing of an uninitialized pointer leads to denial of service. |
IV. Related Vulnerabilities
Same product: C300 PCNT02
-
CVE-2025-3947
Integer underflow during processing of short network packets -
CVE-2025-3946
Incorrect response generation during FTEB protocol processin -
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Lack of buffer clearing before reuse may result in incorrect -
CVE-2025-2521
Lack of indexes’ validation against buffer borders leads to -
CVE-2025-2520
Dereferencing of an uninitialized pointer leads to denial of
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V. Comments for CVE-2025-2522
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