MEDIUM
CVE-2017-20004
CWE-362Published: April 14, 2021· Updated: Jun 17, 2026
5.9
CVSS v3.1
Official Description
In the standard library in Rust before 1.19.0, there is a synchronization problem in the MutexGuard object. MutexGuards can be used across threads with any types, allowing for memory safety issues through race conditions.
Technical Analysis
CVE-2017-20004 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 full integrity compromise (data manipulation), with a CVSS base score of 5.9.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected Vendors & Products
rust-lang1 product(s)
rust
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 (4)
→
https://github.com/rust-lang/rust/issues/41622Patch · Third Party Advisory
→
https://github.com/rust-lang/rust/pull/41624Patch · Third Party Advisory
→
https://github.com/rust-lang/rust/issues/41622Patch · Third Party Advisory
→
https://github.com/rust-lang/rust/pull/41624Patch · Third Party Advisory
Quick Facts
CVE IDCVE-2017-20004
CVSS Score5.9 / 10
SeverityMEDIUM
WeaknessCWE-362
CISA KEVNo
Affected1 vendor(s)
PublishedApr 14, 2021
Related CVEs (CWE-362)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2017-20004 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.