CVE-2021-21341
CVSS v3
7.5
HIGH
Score EPSS
77.8 %
probabilité d’exploitation au 2026-10-05
CISA KEV
Non
exploitation connue
Exploitation
—
statut SSVC
Description
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is vulnerability which may allow a remote attacker to allocate 100% CPU time on the target system depending on CPU type or parallel execution of such a payload resulting in a denial of service only by manipulating the processed input stream. No user is affected who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.
Détails techniques
- Publiée le
- 2021-03-23
Questions fréquentes
Qu’est-ce que CVE-2021-21341 ?
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is vulnerability which may allow a remote attacker to allocate 100% CPU time on the target system depending on CPU type or parallel execution of such a payload resulting in a denial of service only by manipulating the processed input stream. No user is affected who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.
CVE-2021-21341 est-elle activement exploitée ?
Aucune exploitation active de CVE-2021-21341 n’est confirmée. Son score EPSS était de 77.8 % au 2026-10-05, soit la probabilité estimée d’exploitation dans les 30 prochains jours.
Quel est le score CVSS de CVE-2021-21341 ?
CVE-2021-21341 a un score de base CVSS v3 de 7.5 (gravité HIGH).
CVE-2021-21341 touche-t-elle votre environnement ?
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Autres vulnérabilités 2021 à trier
Classées par probabilité d’exploitation (EPSS).