CVE-2018-2433

SAP Gateway (SAP KERNEL 32 NUC, SAP KERNEL 32 Unicode, SAP KERNEL 64 NUC, SAP KERNEL 64 Unicode 7.21, 7.21EXT, 7.22 and 7.22EXT; SAP KERNEL 7.21, 7.22, 7.45, 7.49 and 7.53) allows an attacker to prevent legitimate users from accessing a service, either by crashing or flooding the service.

Published: 2018-07-10 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-2433 is rated Moderate Risk (52/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.08%). 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-2018-2433

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 0.41% 1.08% +0.68%
2 2025-03-30 0.65% 0.41% -0.24%
3 2025-03-29 — 0.65% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-2433

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
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]
5.0 2.0 MEDIUM
AV:N/AC:L/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: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:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2018-2433

Affected software / configurations for CVE-2018-2433

Vendor Product Version Raw CPE
sap sap_kernel 7.21 cpe:2.3:a:sap:sap_kernel:7.21:*:*:*:*:*:*:*
sap sap_kernel 7.21ext cpe:2.3:a:sap:sap_kernel:7.21ext:*:*:*:*:*:*:*
sap sap_kernel 7.22 cpe:2.3:a:sap:sap_kernel:7.22:*:*:*:*:*:*:*
sap sap_kernel 7.22ext cpe:2.3:a:sap:sap_kernel:7.22ext:*:*:*:*:*:*:*
sap sap_kernel 7.45 cpe:2.3:a:sap:sap_kernel:7.45:*:*:*:*:*:*:*
sap sap_kernel 7.49 cpe:2.3:a:sap:sap_kernel:7.49:*:*:*:*:*:*:*
sap sap_kernel 7.53 cpe:2.3:o:sap:sap_kernel:7.53:*:*:*:*:*:*:*

References for CVE-2018-2433

cvelogic Threat Intelligence