6.5

CVE-2021-0297: juniper networks junos os evolved

CVSS: 6.5v3.1MediumModified
Published 19-10-2021Last modified 17-09-2024
Open JSON

Vulnerability summary

CVE-2021-0297 is a medium (CVSS 6.5) vulnerability in juniper networks junos os evolved. EPSS estimates a 0.73% chance of exploitation in the next 30 days, higher than 53.5% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.73%
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. 19-10-2021
    PublishedVulnerability first disclosed.
  2. 17-09-2024
    Last modifiedVulnerability information updated.

Description

A vulnerability in the processing of TCP MD5 authentication in Juniper Networks Junos OS Evolved may allow a BGP or LDP session configured with MD5 authentication to succeed, even if the peer does not have TCP MD5 authentication enabled. This could lead to untrusted or unauthorized sessions being established, resulting in an impact on confidentiality or stability of the network. This issue affects Juniper Networks Junos OS Evolved: All versions prior to 20.3R2-S1-EVO; 20.4 versions prior to 20.4R2-EVO; 21.1 versions prior to 21.1R2-EVO. Juniper Networks Junos OS is not affected by this issue.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.73%

Chance of exploitation in the next 30 days

Percentile

54%

Versus all other CVEs

30-day change

0.00 pp

From 0.73% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.73%

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

Juniper1 product
Juniper networks1 product
  • junos os evolved≥ unspecified, < 20.3R2-S1-EVO | ≥ 20.4, < 20.4R2-EVO | ≥ 21.1, < 21.1R2-EVO

2 vendors · 2 products

References

1 links