What is CVE-2021-44556?

CVE-2021-44556 is a critical-severity vulnerability in Kb Digger, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 9.1/10. Published 2021-12-08.

How severe is CVE-2021-44556?

Critical severity. CVSS v3 base score is 9.1 out of 10.

XXE in Kb Digger

CVE-2021-44556

National Library of the Netherlands digger < 6697d1269d981e35e11f240725b16401b5ce3db5 is affected by a XML External Entity (XXE) vulnerability. Since XML parsing resolves external entities, a malicious XML stream could leak internal files and/or cause a DoS.

Vulnerability class: XXE (XML External Entity)

EPSS: 0.013 (66.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

Affected products

Kb Digger
N/a — versions n/a

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

References

cve@mitre.org (Product, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-44556?: CVE-2021-44556 is a critical-severity vulnerability in Kb Digger, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 9.1/10. Published 2021-12-08.
How severe is CVE-2021-44556?: Critical severity. CVSS v3 base score is 9.1 out of 10.