CVE-2017-12741

Specially crafted packets sent to port 161/udp could cause a denial of service condition. The affected devices must be restarted manually.

Published: 2017-12-26 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-12741 is rated Moderate Risk (63.3/100): CVSS High severity, with medium exploitation likelihood (EPSS 3.31%). 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-2017-12741

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 5.26% 3.31% -1.95%
2 2025-09-17 3.94% 5.26% +1.32%
3 2025-03-30 — 3.94% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-12741

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.7 4.0 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network.
Attack complexity (AC:L)
Exploitation conditions are straightforward and stable.
Attack requirements (AT:N)
No additional preconditions are required beyond normal reachability.
Privileges required (PR:N)
No privileges are required.
User interaction (UI:N)
No user interaction is required.
Vulnerable system confidentiality impact (VC:N)
No confidentiality impact on the vulnerable system.
Vulnerable system integrity impact (VI:N)
No integrity impact on the vulnerable system.
Vulnerable system availability impact (VA:H)
High availability impact on the vulnerable system.
Subsequent system confidentiality impact (SC:N)
No confidentiality impact on subsequent systems.
Subsequent system integrity impact (SI:N)
No integrity impact on subsequent systems.
Subsequent system availability impact (SA:N)
No availability impact on subsequent systems.
Exploit maturity (threat) (E:X)
Not defined: no reliable threat intelligence; scoring assumes the worst case (equivalent to Attacked).
Confidentiality requirement (CR:X)
Not defined: insufficient information; scoring treats this like High (worst case).
Integrity requirement (IR:X)
Not defined: insufficient information; scoring treats this like High (worst case).
Availability requirement (AR:X)
Not defined: insufficient information; scoring treats this like High (worst case).
Modified attack vector (MAV:X)
Not defined: scoring uses the Base Attack Vector (AV).
Modified attack complexity (MAC:X)
Not defined: scoring uses the Base Attack Complexity (AC).
Modified attack requirements (MAT:X)
Not defined: scoring uses the Base Attack Requirements (AT).
Modified privileges required (MPR:X)
Not defined: scoring uses the Base Privileges Required (PR).
Modified user interaction (MUI:X)
Not defined: scoring uses the Base User Interaction (UI).
Modified vulnerable system confidentiality impact (MVC:X)
Not defined: scoring uses the Base VC metric.
Modified vulnerable system integrity impact (MVI:X)
Not defined: scoring uses the Base VI metric.
Modified vulnerable system availability impact (MVA:X)
Not defined: scoring uses the Base VA metric.
Modified subsequent system confidentiality impact (MSC:X)
Not defined: scoring uses the Base SC metric.
Modified subsequent system integrity impact (MSI:X)
Not defined: scoring uses the Base SI metric.
Modified subsequent system availability impact (MSA:X)
Not defined: scoring uses the Base SA metric.
Safety (supplemental) (S:X)
Not evaluated.
Automatable (supplemental) (AU:X)
Not evaluated.
Recovery (supplemental) (R:X)
Not evaluated.
Value density (supplemental) (V:X)
Not evaluated.
Vulnerability response effort (supplemental) (RE:X)
Not evaluated.
Provider urgency (supplemental) (U:X)
Not evaluated.
 — — [email protected]
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]
7.5 3.0 HIGH
CVSS:3.0/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]
7.8 2.0 HIGH
AV:N/AC:L/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 6.9 [email protected]

Weakness enumeration for CVE-2017-12741

Affected software / configurations for CVE-2017-12741

Vendor Product Version Raw CPE
siemens simatic_s7-200_firmware < 2.03.01 cpe:2.3:o:siemens:simatic_s7-200_firmware:*:*:*:*:*:*:*:*
siemens simatic_s7-400pn_v6_firmware < 6.0.6 cpe:2.3:o:siemens:simatic_s7-400pn_v6_firmware:*:*:*:*:*:*:*:*
siemens simatic_s7-400h_v6_firmware < 6.0.8 cpe:2.3:o:siemens:simatic_s7-400h_v6_firmware:*:*:*:*:*:*:*:*
siemens simatic_s7-400pn\/dp_v7_firmware — cpe:2.3:o:siemens:simatic_s7-400pn\/dp_v7_firmware:-:*:*:*:*:*:*:*
siemens simatic_s7-410_v8_firmware — cpe:2.3:o:siemens:simatic_s7-410_v8_firmware:-:*:*:*:*:*:*:*
siemens simatic_s7-300_firmware — cpe:2.3:o:siemens:simatic_s7-300_firmware:-:*:*:*:*:*:*:*
siemens simatic_s7-1200_firmware — cpe:2.3:o:siemens:simatic_s7-1200_firmware:-:*:*:*:*:*:*:*
siemens simatic_s7-1500_firmware < 2.0 cpe:2.3:o:siemens:simatic_s7-1500_firmware:*:*:*:*:*:*:*:*
siemens simatic_s7-1500_controller_firmware 2.0 cpe:2.3:o:siemens:simatic_s7-1500_controller_firmware:2.0:*:*:*:*:*:*:*
siemens simatic_winac_rtx_f_2010_firmware — cpe:2.3:o:siemens:simatic_winac_rtx_f_2010_firmware:-:*:*:*:*:*:*:*
siemens simatic_et_200al_firmware — cpe:2.3:o:siemens:simatic_et_200al_firmware:-:*:*:*:*:*:*:*
siemens simatic_et_200ecopn_firmware — cpe:2.3:o:siemens:simatic_et_200ecopn_firmware:-:*:*:*:*:*:*:*
siemens simatic_et_200m_firmware — cpe:2.3:o:siemens:simatic_et_200m_firmware:-:*:*:*:*:*:*:*
siemens simatic_et_200mp_firmware — cpe:2.3:o:siemens:simatic_et_200mp_firmware:-:*:*:*:*:*:*:*
siemens simatic_et_200pro_firmware — cpe:2.3:o:siemens:simatic_et_200pro_firmware:-:*:*:*:*:*:*:*
siemens simatic_et_200s_firmware — cpe:2.3:o:siemens:simatic_et_200s_firmware:-:*:*:*:*:*:*:*
siemens simatic_et_200sp_firmware — cpe:2.3:o:siemens:simatic_et_200sp_firmware:-:*:*:*:*:*:*:*
siemens dk_standard_ethernet_controller_firmware — cpe:2.3:o:siemens:dk_standard_ethernet_controller_firmware:-:*:*:*:*:*:*:*
siemens ek-ertec_200p_firmware < 4.5 cpe:2.3:o:siemens:ek-ertec_200p_firmware:*:*:*:*:*:*:*:*
siemens ek-ertec_200pn_io_firmware — cpe:2.3:o:siemens:ek-ertec_200pn_io_firmware:-:*:*:*:*:*:*:*
siemens simotion_d_firmware <= 5.1 cpe:2.3:o:siemens:simotion_d_firmware:*:*:*:*:*:*:*:*
siemens simotion_c_firmware <= 5.1 cpe:2.3:o:siemens:simotion_c_firmware:*:*:*:*:*:*:*:*
siemens simotion_p_firmware <= 5.1 cpe:2.3:o:siemens:simotion_p_firmware:*:*:*:*:*:*:*:*
siemens sinamics_dcm_firmware — cpe:2.3:o:siemens:sinamics_dcm_firmware:-:*:*:*:*:*:*:*
siemens sinamics_dcp_firmware — cpe:2.3:o:siemens:sinamics_dcp_firmware:-:*:*:*:*:*:*:*
siemens sinamics_g110m\/g120pn_firmware <= 4.7 cpe:2.3:o:siemens:sinamics_g110m\/g120pn_firmware:*:*:*:*:*:*:*:*
siemens sinamics_g130_firmware — cpe:2.3:o:siemens:sinamics_g130_firmware:-:*:*:*:*:*:*:*
siemens sinamics_g150_firmware — cpe:2.3:o:siemens:sinamics_g150_firmware:-:*:*:*:*:*:*:*
siemens sinamics_s110pn_firmware — cpe:2.3:o:siemens:sinamics_s110pn_firmware:-:*:*:*:*:*:*:*
siemens sinamics_s120_firmware — cpe:2.3:o:siemens:sinamics_s120_firmware:-:*:*:*:*:*:*:*
siemens sinamics_s150_v4.7_firmware — cpe:2.3:o:siemens:sinamics_s150_v4.7_firmware:-:*:*:*:*:*:*:*
siemens sinamics_s150_v4.8_firmware — cpe:2.3:o:siemens:sinamics_s150_v4.8_firmware:-:*:*:*:*:*:*:*
siemens sinamics_v90pn_firmware — cpe:2.3:o:siemens:sinamics_v90pn_firmware:-:*:*:*:*:*:*:*
siemens sinumerik_840d_sl_firmware — cpe:2.3:o:siemens:sinumerik_840d_sl_firmware:-:*:*:*:*:*:*:*
siemens simatic_compact_field_unit_firmware — cpe:2.3:o:siemens:simatic_compact_field_unit_firmware:-:*:*:*:*:*:*:*
siemens simatic_pn\/pn_coupler_firmware — cpe:2.3:o:siemens:simatic_pn\/pn_coupler_firmware:-:*:*:*:*:*:*:*
siemens simocode_pro_v_profinet_firmware — cpe:2.3:o:siemens:simocode_pro_v_profinet_firmware:-:*:*:*:*:*:*:*
siemens sirius_soft_starter_3rw44pn_firmware — cpe:2.3:o:siemens:sirius_soft_starter_3rw44pn_firmware:-:*:*:*:*:*:*:*

References for CVE-2017-12741

cvelogic Threat Intelligence