How severe is CVE-2018-2477?

CVE-2018-2477 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-2477 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-2477?

CVE-2018-2477 primarily affects Sap Netweaver. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-2477?

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-2018-2477 published?

CVE-2018-2477 was published on 2018-11-13 and last updated on 2026-06-17.

CVE-2018-2477

CVE-2018-2477 is a high-severity vulnerability in Sap Netweaver with a CVSS 3.x base score of 8.8. 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-91.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-91
Affected product: Sap Netweaver
Published: 2018-11-13
Last modified: 2026-06-17

Description

Knowledge Management (XMLForms) in SAP NetWeaver, versions 7.30, 7.31, 7.40 and 7.50 does not sufficiently validate an XML document accepted from an untrusted source.

Frequently asked questions

What is CVE-2018-2477?: Knowledge Management (XMLForms) in SAP NetWeaver, versions 7.30, 7.31, 7.40 and 7.50 does not sufficiently validate an XML document accepted from an untrusted source.
How severe is CVE-2018-2477?: CVE-2018-2477 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-2477 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-2477?: CVE-2018-2477 primarily affects Sap Netweaver. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-2477?: 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-2018-2477 published?: CVE-2018-2477 was published on 2018-11-13 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:sap:netweaver:7.30:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver:7.31:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver:7.40:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver:7.50:*:*:*:*:*:*:*

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