CVE-2018-4832

A vulnerability has been identified in OpenPCS 7 V7.1 and earlier (All versions), OpenPCS 7 V8.0 (All versions), OpenPCS 7 V8.1 (All versions < V8.1 Upd5), OpenPCS 7 V8.2 (All versions), OpenPCS 7 V9.0 (All versions < V9.0 Upd1), SIMATIC BATCH V7.1 and earlier (All versions), SIMATIC BATCH V8.0 (All versions < V8.0 SP1 Upd21), SIMATIC BATCH V8.1 (All versions < V8.1 SP1 Upd16), SIMATIC BATCH V8.2 (All versions < V8.2 Upd10), SIMATIC BATCH V9.0 (All versions < V9.0 SP1), SIMATIC NET PC Software V14 (All versions < V14 SP1 Update 14), SIMATIC NET PC Software V15 (All versions < 15 SP1), SIMATIC PCS 7 V7.1 and earlier (All versions), SIMATIC PCS 7 V8.0 (All versions), SIMATIC PCS 7 V8.1 (All versions), SIMATIC PCS 7 V8.2 (All versions < V8.2 SP1), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP1), SIMATIC Route Control V7.1 and earlier (All versions), SIMATIC Route Control V8.0 (All versions), SIMATIC Route Control V8.1 (All versions), SIMATIC Route Control V8.2 (All versions), SIMATIC Route Control V9.0 (All versions < V9.0 Upd1), SIMATIC WinCC Runtime Professional V13 (All versions < V13 SP2 Upd2), SIMATIC WinCC Runtime Professional V14 (All versions < V14 SP1 Upd5), SIMATIC WinCC V7.2 and earlier (All versions < WinCC 7.2 Upd 15), SIMATIC WinCC V7.3 (All versions < WinCC 7.3 Upd 16), SIMATIC WinCC V7.4 (All versions < V7.4 SP1 Upd 4), SPPA-T3000 Application Server (All versions < Service Pack R8.2 SP2). Specially crafted messages sent to the RPC service of the affected products could cause a Denial-of-Service condition on the remote and local communication functionality of the affected products. A reboot of the system is required to recover the remote and local communication functionality. Please note that an attacker needs to have network access to the Application Server in order to exploit this vulnerability. At the time of advisory publication no public exploitation of this security vulnerability was known.

Published: 2018-04-24 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2018-4832 is rated Moderate Risk (60.9/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.47%). Core evidence: EPSS rose +2.04% over the last day, indicating growing attacker interest. Mandatory action: Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2018-4832

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.43% 2.47% +2.04%
2 2025-10-07 0.57% 0.43% -0.14%
3 2025-04-18 0.57%

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-4832

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
3.9 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
8.6 2.9 [email protected]

Weakness enumeration for CVE-2018-4832

Affected software / configurations for CVE-2018-4832

Vendor Product Version Raw CPE
siemens openpcs_7 <= 7.1 cpe:2.3:a:siemens:openpcs_7:*:*:*:*:*:*:*:*
siemens openpcs_7 8.0 cpe:2.3:a:siemens:openpcs_7:8.0:*:*:*:*:*:*:*
siemens openpcs_7 8.1 cpe:2.3:a:siemens:openpcs_7:8.1:-:*:*:*:*:*:*
siemens openpcs_7 8.1 cpe:2.3:a:siemens:openpcs_7:8.1:upd_1:*:*:*:*:*:*
siemens openpcs_7 8.1 cpe:2.3:a:siemens:openpcs_7:8.1:upd_2:*:*:*:*:*:*
siemens openpcs_7 8.1 cpe:2.3:a:siemens:openpcs_7:8.1:upd_3:*:*:*:*:*:*
siemens openpcs_7 8.1 cpe:2.3:a:siemens:openpcs_7:8.1:upd_4:*:*:*:*:*:*
siemens openpcs_7 8.2 cpe:2.3:a:siemens:openpcs_7:8.2:*:*:*:*:*:*:*
siemens openpcs_7 9.0 cpe:2.3:a:siemens:openpcs_7:9.0:*:*:*:*:*:*:*
siemens simatic_batch 7.1 cpe:2.3:a:siemens:simatic_batch:7.1:*:*:*:*:*:*:*
siemens simatic_batch 8.0 cpe:2.3:a:siemens:simatic_batch:8.0:-:*:*:*:*:*:*
siemens simatic_batch 8.0 cpe:2.3:a:siemens:simatic_batch:8.0:sp1_upd20:*:*:*:*:*:*
siemens simatic_batch 8.1 cpe:2.3:a:siemens:simatic_batch:8.1:-:*:*:*:*:*:*
siemens simatic_batch 8.1 cpe:2.3:a:siemens:simatic_batch:8.1:sp1_upd14:*:*:*:*:*:*
siemens simatic_batch 8.1 cpe:2.3:a:siemens:simatic_batch:8.1:sp1_upd15:*:*:*:*:*:*
siemens simatic_batch 8.2 cpe:2.3:a:siemens:simatic_batch:8.2:-:*:*:*:*:*:*
siemens simatic_batch 8.2 cpe:2.3:a:siemens:simatic_batch:8.2:upd_9:*:*:*:*:*:*
siemens simatic_batch 9.0 cpe:2.3:a:siemens:simatic_batch:9.0:*:*:*:*:*:*:*
siemens simatic_net_pc < 15 cpe:2.3:a:siemens:simatic_net_pc:*:*:*:*:*:*:*:*
siemens simatic_net_pc 15 cpe:2.3:a:siemens:simatic_net_pc:15:-:*:*:*:*:*:*
siemens simatic_pcs_7 <= 7.1 cpe:2.3:a:siemens:simatic_pcs_7:*:*:*:*:*:*:*:*
siemens simatic_pcs_7 8.0 cpe:2.3:a:siemens:simatic_pcs_7:8.0:*:*:*:*:*:*:*
siemens simatic_pcs_7 8.1 cpe:2.3:a:siemens:simatic_pcs_7:8.1:*:*:*:*:*:*:*
siemens simatic_pcs_7 8.2 cpe:2.3:a:siemens:simatic_pcs_7:8.2:-:*:*:*:*:*:*
siemens simatic_pcs_7 9.0 cpe:2.3:a:siemens:simatic_pcs_7:9.0:-:*:*:*:*:*:*
siemens simatic_route_control <= 7.1 cpe:2.3:a:siemens:simatic_route_control:*:*:*:*:*:*:*:*
siemens simatic_route_control 8.0 cpe:2.3:a:siemens:simatic_route_control:8.0:*:*:*:*:*:*:*
siemens simatic_route_control 8.1 cpe:2.3:a:siemens:simatic_route_control:8.1:*:*:*:*:*:*:*
siemens simatic_route_control 9.0 cpe:2.3:a:siemens:simatic_route_control:9.0:-:*:*:*:*:*:*
siemens simatic_wincc_runtime_professional < 13 cpe:2.3:a:siemens:simatic_wincc_runtime_professional:*:*:*:*:*:*:*:*
siemens simatic_wincc_runtime_professional 13 cpe:2.3:a:siemens:simatic_wincc_runtime_professional:13:-:*:*:*:*:*:*
siemens simatic_wincc_runtime_professional 13 cpe:2.3:a:siemens:simatic_wincc_runtime_professional:13:sp2_upd_1:*:*:*:*:*:*
siemens simatic_wincc_runtime_professional 14 cpe:2.3:a:siemens:simatic_wincc_runtime_professional:14:-:*:*:*:*:*:*
siemens simatic_wincc_runtime_professional 14 cpe:2.3:a:siemens:simatic_wincc_runtime_professional:14:sp1_upd_4:*:*:*:*:*:*
siemens simatic_wincc < 7.2 cpe:2.3:a:siemens:simatic_wincc:*:*:*:*:*:*:*:*
siemens simatic_wincc 7.2 cpe:2.3:a:siemens:simatic_wincc:7.2:-:*:*:*:*:*:*
siemens simatic_wincc 7.2 cpe:2.3:a:siemens:simatic_wincc:7.2:upd_14:*:*:*:*:*:*
siemens simatic_wincc 7.3 cpe:2.3:a:siemens:simatic_wincc:7.3:-:*:*:*:*:*:*
siemens simatic_wincc 7.3 cpe:2.3:a:siemens:simatic_wincc:7.3:upd_15:*:*:*:*:*:*
siemens simatic_wincc 7.4 cpe:2.3:a:siemens:simatic_wincc:7.4:-:*:*:*:*:*:*
siemens simatic_wincc 7.4 cpe:2.3:a:siemens:simatic_wincc:7.4:sp1:*:*:*:*:*:*
siemens simatic_wincc 7.4 cpe:2.3:a:siemens:simatic_wincc:7.4:sp1_upd_3:*:*:*:*:*:*
siemens sppa-t3000_application_server < r8.2 cpe:2.3:a:siemens:sppa-t3000_application_server:*:*:*:*:*:*:*:*
siemens sppa-t3000_application_server r8.2 cpe:2.3:a:siemens:sppa-t3000_application_server:r8.2:-:*:*:*:*:*:*
siemens sppa-t3000_application_server r8.2 cpe:2.3:a:siemens:sppa-t3000_application_server:r8.2:sp1:*:*:*:*:*:*
siemens simatic_net_pc_software < 14.0 cpe:2.3:a:siemens:simatic_net_pc_software:*:*:*:*:*:*:*:*

References for CVE-2018-4832

cvelogic Threat Intelligence