CVE Feed
— Unscored

libarchive 3.4.1 through 3.5.1 has a use-after-free in copystring (called from douncompressblock and processblock).

CVE-2021-36976

libarchive 3.4.1 through 3.5.1 has a use-after-free in copystring (called from douncompressblock and processblock).

Assessment

CVSS
Not yet scored
Severity
Unscored
EPSS
2.85% chance of exploitation in the next 30 days
Known exploited
Not listed in CISA KEV
Exploit availability
Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published
20 July 2021
Last updated
2 November 2026
Affected
n/a · n/a
Assigner
mitre

At the source

References

Community proofs of concept

No community proof of concept yet. If you have one for a published vulnerability and the right to share it, add it below — it will appear here once reviewed.

Submit a proof of concept
Before you submit *

Query this programmatically

Agents can read this through the MCP endpoint, or over HTTP:

curl https://cve.zerocrew.in/api/cve/CVE-2021-36976