Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2021-27568

CVE-2021-27568MEDIUM

n/a n/a — An issue was discovered in netplex json-smart-v1 through 2015-10-23 and json-smart-v2 through 2.4.

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   H   N   N  U  N  N  H    5.9   .0290   86.7     —

AFFECTED
  Product  Versions  Fixed
  n/a      n/a –     —

TIMELINE
  Feb 23  Reserved by mitre
  Feb 23  Published (CNA: mitre)
  Oct 8   ENRICHED — CVE-2021-27568. Received CVSS 5.9 and CPE data from NVD.
  Oct 8   EXPLOIT PUBLISHED — CVE-2021-27568. Public exploit reference added.

CWE-754 · CNA: mitre · CVSS v3.1 · 8 references · NVD status: Modified

Description

An issue was discovered in netplex json-smart-v1 through 2015-10-23 and json-smart-v2 through 2.4. An exception is thrown from a function, but it is not caught, as demonstrated by NumberFormatException. When it is not caught, it may cause programs using the library to crash or expose sensitive information.

Lifecycle

Complete event history — 4 events, chronological
Date	Event	Detail
February 23, 2021	Reserved	Reserved by mitre
February 23, 2021	Published	Published (CNA: mitre)
October 8, 2026	ENRICHED	ENRICHED — CVE-2021-27568. Received CVSS 5.9 and CPE data from NVD.
October 8, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2021-27568. Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	n/a	—	n/a	—

Weaknesses

CWE-754

References (8)

https://github.com/netplex/json-smart-v1/issues/7 [Exploit, Third Party Advisory]
https://github.com/netplex/json-smart-v2/issues/60 [Exploit, Third Party Advisory]
https://lists.apache.org/thread.html/rb6287f5aa628c8d9af52b5401ec6cc51b6fc28ab20d318943453e396%40%3Ccommits.druid.apache.org%3E
https://lists.apache.org/thread.html/re237267da268c690df5e1c6ea6a38a7fc11617725e8049490f58a6fa%40%3Ccommits.druid.apache.org%3E
https://lists.apache.org/thread.html/rf70210b4d63191c0bfb2a0d5745e104484e71703bf5ad9cb01c980c6%40%3Ccommits.druid.apache.org%3E
https://www.oracle.com//security-alerts/cpujul2021.html [Patch, Third Party Advisory]
https://www.oracle.com/security-alerts/cpuapr2022.html [Patch, Third Party Advisory]
https://www.oracle.com/security-alerts/cpujan2022.html [Patch, Third Party Advisory]

Authoritative record: CVE-2021-27568 at cve.org

Weaknesses: CWE-754

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2021-27568 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.