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CVE-2020-5499

25
FAUCET Score

CVE-2020-5499 describes a critical enclave ID race condition in Baidu Rust SGX SDK versions through 1.0.8, leading to non-deterministic and potentially duplicate global IDs. This vulnerability carries a CVSS score of 9.8 (CRITICAL), indicating it can be exploited remotely with low complexity, resulting in complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered minimal community discussion and media coverage, with only one article identified.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.0.8CPE matchmatch criteria
cpe:2.3:a:apache:rust_sgx_sdk:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.16%
Probability of exploitation in next 30 days
EPSS Percentile
86.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0316 is in the 78th percentile among its peer group of 36,862 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / wssgcsc58/CVEs/tree/master/baidurustsgxsdk_enclaveid_race
ExploitThird Party Advisory