8.1

CVE-2016-10931: rust-openssl_project rust-openssl Improper Certificate Validation

CVSS: 8.1v3.0HighModified
AliasesGHSA-34p9-f4q3-c4r7RUSTSEC-2016-0001
Published 26-08-2019Last modified 06-08-2024
Open JSON

Vulnerability summary

CVE-2016-10931 is a high (CVSS 8.1) Improper Certificate Validation vulnerability in rust-openssl_project rust-openssl. EPSS estimates a 0.74% chance of exploitation in the next 30 days, higher than 53.9% of scored vulnerabilities.

Overall risk
33/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.1/10
010
High · v3.0 (NVD)
EPSS score
0.74%
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. 06-08-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in the openssl crate before 0.9.0 for Rust. There is an SSL/TLS man-in-the-middle vulnerability because certificate verification is off by default and there is no API for hostname verification.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.74%

Chance of exploitation in the next 30 days

Percentile

54%

Versus all other CVEs

30-day change

0.00 pp

From 0.74% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.74%

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
  • openssl< 0.9.0 | ≥ 0.0.0-0, < 0.9.0
Rust-openssl_project1 product

2 vendors · 2 products

References

5 links