IBM Cognos Anaytics 11.0 and 11.1 is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 179156.
CVE-2020-4377
CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence
This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 0.6%, top 30% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, nvd
9.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 2%CVSS: 9.1Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.1
- EG Score
- 9.1(medium)
- EPSS
- 79.3%
- KEV
- Not listed
Published
August 3, 2020
Last Modified
November 21, 2024
References (4)
- psirt@ushttps://exchange.xforce.ibmcloud.com/vulnerabilities/179156
- psirt@ushttps://www.ibm.com/support/pages/node/6252853
- af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/179156
- af854a3a-2127-422b-91ae-364da2661108https://www.ibm.com/support/pages/node/6252853
Frequently asked(5)
What is CVE-2020-4377?
CVE-2020-4377 is a critical vulnerability published on August 3, 2020. IBM Cognos Anaytics 11.0 and 11.1 is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 179156.
When was CVE-2020-4377 disclosed?
CVE-2020-4377 was first published in the National Vulnerability Database on August 3, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-4377 actively exploited?
CVE-2020-4377 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 79.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2020-4377?
CVE-2020-4377 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2020-4377?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-4377, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2020-4377
Is Your Infrastructure Affected by CVE-2020-4377?
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