Is CVE-2022-23640 in the CISA KEV catalog?

No. CVE-2022-23640 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-23640?

CVE-2022-23640 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2022-23640?

CVE-2022-23640 has an EPSS score of 1.41% (69th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-23640?

Upgrade excel streaming reader to 2.1.0 or later.

CVE & CISA-KEV Catalog

CVE-2022-23640

CRITICAL

9.8

CVSS v3

NVD

Description

Excel-Streaming-Reader is an easy-to-use implementation of a streaming Excel reader using Apache POI. Prior to xlsx-streamer 2.1.0, the XML parser that was used did apply all the necessary settings to prevent XML Entity Expansion issues. Upgrade to version 2.1.0 to receive a patch. There is no known workaround.

CWE-611XML External Entity (XXE)CWE-776

How to fix

Remediation Available

excel streaming readerNVD

Affected:< 2.1.0Fixed in:2.1.0CVE-2022-23640derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

1.41%probability of exploitation in 30 days

69thpercentile

Moderate risk: more likely to be exploited than 69% of all known CVEs.

References

Patch2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.