9.8

CVE-2020-7956: hashicorp nomad Improper Certificate Validation

CVSS: 9.8v3.1CriticalModified
AliasesUBUNTU-CVE-2020-7956GHSA-cj2h-ww36-v932GO-2022-0821
Published 31-01-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-7956 is a critical (CVSS 9.8) Improper Certificate Validation vulnerability in hashicorp nomad. EPSS estimates a 0.98% chance of exploitation in the next 30 days, higher than 61.7% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
0.98%
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. 31-01-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

HashiCorp Nomad and Nomad Enterprise up to 0.10.2 incorrectly validated role/region associated with TLS certificates used for mTLS RPC, and were susceptible to privilege escalation. Fixed in 0.10.3.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.98%

Chance of exploitation in the next 30 days

Percentile

62%

Versus all other CVEs

30-day change

0.00 pp

From 0.98% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.98%

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

Github.com/hashicorp1 product
  • nomad< 0.10.3
Hashicorp1 product
Ubuntu1 product
  • nomadAll versions (No fix recorded)

3 vendors · 3 products

References

8 links