OSV-2020-784
Bad-cast to zmq::session_base_t from invalid vptr
No scoreFix available
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24018
Crash type: Bad-cast
Crash state:
Bad-cast to zmq::session_base_t from invalid vptr
zmq::stream_engine_base_t::in_event_internal
zmq::stream_engine_base_t::in_event
What each source reports
OSV No score
Bad-cast to zmq::session_base_t from invalid vptr
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24018
Crash type: Bad-cast
Crash state:
Bad-cast to zmq::session_base_t from invalid vptr
zmq::stream_engine_base_t::in_event_internal
zmq::stream_engine_base_t::in_event
- Record
OSV-2020-784- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
libzmqOSS-Fuzz |
Commit ranges | Not evaluated |
Not evaluated means the source gave git commits or a range we can't read, so we can't tell which releases are affected. A fixed version beside it is the source’s own claim.
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
OSV-2020-784 is a vulnerability with no CVSS score yet in libzmq, published July 14, 2020. No source lists public exploit code. A source reports a fix.