How severe is CVE-2021-33707?

CVE-2021-33707 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-33707 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-33707?

CVE-2021-33707 primarily affects Sap Netweaver Knowledge Management. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-33707?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-33707 published?

CVE-2021-33707 was published on 2021-08-10 and last updated on 2026-06-17.

CVE-2021-33707

CVE-2021-33707 is a medium-severity vulnerability in Sap Netweaver Knowledge Management with a CVSS 3.x base score of 6.1. 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-601.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 5.8
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-601
Affected product: Sap Netweaver Knowledge Management
Published: 2021-08-10
Last modified: 2026-06-17

Description

SAP NetWeaver Knowledge Management allows remote attackers to redirect users to arbitrary websites and conduct phishing attacks via a URL stored in a component. This could enable the attacker to compromise the user's confidentiality and integrity.

Frequently asked questions

What is CVE-2021-33707?: SAP NetWeaver Knowledge Management allows remote attackers to redirect users to arbitrary websites and conduct phishing attacks via a URL stored in a component. This could enable the attacker to compromise the user's confidentiality and integrity.
How severe is CVE-2021-33707?: CVE-2021-33707 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-33707 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-33707?: CVE-2021-33707 primarily affects Sap Netweaver Knowledge Management. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-33707?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-33707 published?: CVE-2021-33707 was published on 2021-08-10 and last updated on 2026-06-17.

References

Affected products (4)

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

More vulnerabilities in Sap Netweaver Knowledge Management

CVE-2020-6284 — Critical (CVSS 9.0): SAP NetWeaver (Knowledge Management), versions - 7.30, 7.31, 7.40, 7.50, allows the automatic execution of script…
CVE-2021-21488 — Medium (CVSS 6.5): Knowledge Management versions 7.01, 7.02, 7.30, 7.31, 7.40, 7.50 allows a remote attacker with basic privileges to…
CVE-2020-6293 — Medium (CVSS 6.5): SAP NetWeaver (Knowledge Management), versions - 7.30, 7.31, 7.40, 7.50, allows an unauthenticated attacker to upload a…
CVE-2020-6193 — Medium (CVSS 6.1): SAP NetWeaver (Knowledge Management ICE Service), versions 7.30, 7.31, 7.40, 7.50, allows an unauthenticated attacker…
CVE-2020-6326 — Medium (CVSS 5.4): SAP NetWeaver (Knowledge Management), version-7.30,7.31,7.40,7.50, allows an authenticated attacker to create malicious…

All CVEs affecting Sap Netweaver Knowledge Management →

Other CWE-601 (Open Redirect) vulnerabilities

CVE-2018-3774 — Critical (CVSS 10.0): Incorrect parsing in url-parse <1.4.3 returns wrong hostname which leads to multiple vulnerabilities such as SSRF, Open…
CVE-2019-25282 — Critical (CVSS 9.8): V-SOL GPON/EPON OLT Platform v2.03 contains an open redirect vulnerability in the script that allows attackers to…
CVE-2020-36912 — Critical (CVSS 9.8): Plexus anblick Digital Signage Management 3.1.13 contains an open redirect vulnerability in the 'PantallaLogin' script…
CVE-2025-43526 — Critical (CVSS 9.8): This issue was addressed with improved URL validation. This issue is fixed in Safari 26.2, macOS Tahoe 26.2. On a Mac…
CVE-2025-55031 — Critical (CVSS 9.8): Malicious pages could use Firefox for iOS to pass FIDO: links to the OS and trigger the hybrid passkey transport. An…
CVE-2024-22891 — Critical (CVSS 9.8): Nteract v.0.28.0 was discovered to contain a remote code execution (RCE) vulnerability via the Markdown link.

Browse all CWE-601 (Open Redirect) vulnerabilities →