How severe is CVE-2016-4551?

CVE-2016-4551 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2016-4551 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-4551?

CVE-2016-4551 primarily affects Sap Netweaver. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-4551?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2016-4551 published?

CVE-2016-4551 was published on 2016-10-05 and last updated on 2026-06-17.

CVE-2016-4551

CVE-2016-4551 is a high-severity vulnerability in Sap Netweaver with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Sap Netweaver
Published: 2016-10-05
Last modified: 2026-06-17

Description

The (1) SAP_BASIS and (2) SAP_ABA components 7.00 SP Level 0031 in SAP NetWeaver 2004s might allow remote attackers to spoof IP addresses written to the Security Audit Log via vectors related to the network landscape, aka SAP Security Note 2190621.

Frequently asked questions

What is CVE-2016-4551?: The (1) SAP_BASIS and (2) SAP_ABA components 7.00 SP Level 0031 in SAP NetWeaver 2004s might allow remote attackers to spoof IP addresses written to the Security Audit Log via vectors related to the network landscape, aka SAP Security Note 2190621.
How severe is CVE-2016-4551?: CVE-2016-4551 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2016-4551 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-4551?: CVE-2016-4551 primarily affects Sap Netweaver. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-4551?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2016-4551 published?: CVE-2016-4551 was published on 2016-10-05 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:sap:netweaver:2004s:*:*:*:*:*:*:*
cpe:2.3:a:sap:sap_aba:7.00:sp_level_0031:*:*:*:*:*:*
cpe:2.3:a:sap:sap_basis:7.00:sp_level_0031:*:*:*:*:*:*

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