HIGH
CVE-2020-36215
CWE-662Published: January 26, 2021· Updated: Jun 17, 2026
7.5
CVSS v3.1
Official Description
An issue was discovered in the hashconsing crate before 1.1.0 for Rust. Because HConsed does not have bounds on its Send trait or Sync trait, memory corruption can occur.
Technical Analysis
CVE-2020-36215 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Vendors & Products
hashconsing_project1 product(s)
hashconsing
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (2)
→
https://rustsec.org/advisories/RUSTSEC-2020-0107.htmlExploit · Vendor Advisory
→
https://rustsec.org/advisories/RUSTSEC-2020-0107.htmlExploit · Vendor Advisory
Quick Facts
CVE IDCVE-2020-36215
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-662
CISA KEVNo
Affected1 vendor(s)
PublishedJan 26, 2021
Related CVEs (CWE-662)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2020-36215 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.