9.8

CVE-2018-20996: crossbeam_project crossbeam Double Free

CVSS: 9.8v3.0CriticalModified
AliasesUBUNTU-CVE-2018-20996GHSA-c3cw-c387-pj65RUSTSEC-2018-0009
Published 26-08-2019Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-20996 is a critical (CVSS 9.8) Double Free vulnerability in crossbeam_project crossbeam. EPSS estimates a 1.74% chance of exploitation in the next 30 days, higher than 77.4% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.0 (NVD)
EPSS score
1.74%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 26-08-2019
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in the crossbeam crate before 0.4.1 for Rust. There is a double free because of destructor mishandling.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.74%

Chance of exploitation in the next 30 days

Percentile

77%

Versus all other CVEs

30-day change

0.00 pp

From 1.74% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.74%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Crates.Io1 product
  • crossbeam≥ 0.4.0, < 0.4.1
Crossbeam_project1 product
Ubuntu1 product
  • rust-crossbeam-epochAll versions (No fix recorded)

3 vendors · 3 products

References

7 links