XXE in Kb Multiner
CVE-2021-44557
National Library of the Netherlands multiNER <= c0440948057afc6e3d6b4903a7c05e666b94a3bc is affected by an XML External Entity (XXE) vulnerability in multiNER/ner.py. 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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.013 (69.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 69.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: +0.000
Affected products
Weakness classification (CWE)
References
- github.com/KBNLresearch/multiNER (Product, Third Party Advisory)
- github.com/KBNLresearch/multiNER/pull/3 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-44557?
- CVE-2021-44557 is a critical-severity vulnerability in Kb Multiner, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 9.1/10. Published 2021-12-08.
- How severe is CVE-2021-44557?
- Critical severity. CVSS v3 base score is 9.1 out of 10.