OSV-2020-153

UNKNOWN WRITE in Variant_encodeJson

No scoreFix available

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20578

Crash type: UNKNOWN WRITE
Crash state:
Variant_encodeJson
Variant_encodeJson
Variant_encodeJson

What each source reports

OSV No score

UNKNOWN WRITE in Variant_encodeJson

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20578

Crash type: UNKNOWN WRITE
Crash state:
Variant_encodeJson
Variant_encodeJson
Variant_encodeJson

Record: OSV-2020-153
Updated: 2026-11-02

Affected packages

Affected packages
Package	Affected	Fixed
`open62541` OSS-Fuzz	Listed versions, plus commit ranges basic256sha256v1.0v1.0-devv1.0-rc3v1.0.1 Show 6 moreShow less v1.0.2v1.0.3v1.0.5v1.0.6v1.1-devv1.1-rc1	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

OSV-2020-153 is a vulnerability with no CVSS score yet in open62541, published June 24, 2020. No source lists public exploit code. A source reports a fix.

References

bugs.chromium.org/p/oss-fuzz/issues/detail?id=20578