7.1

CVE-2026-101959: juniper networks junos os

CVSS: 7.1v4.0HighAwaiting analysis
Published 14-10-2026Last modified 14-10-2026
Open JSON

Vulnerability summary

CVE-2026-101959 is a high (CVSS 7.1) vulnerability in juniper networks junos os. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 15.3% of scored vulnerabilities.

Overall risk
28/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.1/10
010
High · v4.0 (CVE.org)
EPSS score
0.25%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 14-10-2026
    PublishedVulnerability first disclosed.
  2. 14-10-2026
    Last modifiedVulnerability information updated.

Description

A Function Call With Incorrect Variable or Reference as Argument vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause an rpd crash via specifically malformed LSP-ping.

CVSS metrics

4 scores · 2 sources · 2 versions

EPSS trend

Probability

0.25%

Chance of exploitation in the next 30 days

Percentile

15%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

15-10-202620-10-2026
EPSS score
0.25%

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

Juniper networks2 products
  • junos os< 23.2R2-S7.7 | ≥ 23.4, < 23.4R2-S8.13 | ≥ 24.2, < 24.2R2-S5.5 | ≥ 24.4, < 24.4R2-S5 | ≥ 25.2, < 25.2R2-S2 | ≥ 25.4, < 25.4R1-S3 | ≥ 26.2, < 26.2R1-S2
  • junos os evolved< 23.2R2-S7.7-EVO | ≥ 23.4, < 23.4R2-S8.11-EVO | ≥ 24.2, < 24.2R2-S5.6-EVO | ≥ 24.4, < 24.4R2-S5-EVO | ≥ 25.2, < 25.2R2-S2-EVO | ≥ 25.4, < 25.4R1-S3-EVO | ≥ 26.2, < 26.2R1-S2-EVO | 23.4X100 | ≥ 25.2X100, < 25.2X100-D35-EVO | ≥ 25.4X300, < 25.4X300-D40-EVO

1 vendor · 2 products

References

1 links