8.6

CVE-2020-2099: jenkins project jenkins Use of Insufficiently Random Values

CVSS: 8.6v3.1HighModified
AliasesGHSA-qp4f-2w67-c8hwBIT-jenkins-2020-2099
Published 29-01-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-2099 is a high (CVSS 8.6) Use of Insufficiently Random Values vulnerability in jenkins project jenkins. EPSS estimates a 1.01% chance of exploitation in the next 30 days, higher than 62.8% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.6/10
010
High · v3.1 (NVD)
EPSS score
1.01%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2
RHBA-2020:0402RHBA-2020:0675

Timeline

  1. 29-01-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

Jenkins 2.213 and earlier, LTS 2.204.1 and earlier improperly reuses encryption key parameters in the Inbound TCP Agent Protocol/3, allowing unauthorized attackers with knowledge of agent names to obtain the connection secrets for those agents, which can be used to connect to Jenkins, impersonating those agents.

CVSS metrics

3 scores · 2 sources · 3 versions

EPSS trend

Probability

1.01%

Chance of exploitation in the next 30 days

Percentile

63%

Versus all other CVEs

30-day change

0.00 pp

From 1.01% on 21-09-2026

21-09-202621-10-2026
EPSS score
1.01%

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

Jenkins1 product
Jenkins project1 product
  • jenkins≥ unspecified, ≤ 2.213 | ≥ unspecified, ≤ LTS 2.204.1
Org.jenkins-ci.main1 product
  • jenkins-core< 2.204.2 | ≥ 2.205, < 2.214

3 vendors · 3 products

References

9 links