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CVE-2026-101946

MEDIUM 5.3

Published 2026-10-14 · Last modified 2026-10-16

An Out-of-bounds Read vulnerability in the rpd process of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent low-privilege attacker to disclose limited rpd process memory and disrupt an LDP adjacency via an IPv6 LDP message.

NO EXPLOITATION SIGNALS

No known exploitation, public exploit, or elevated probability at this time. Track for changes.

Exploitation likelihood

0.2%chance of exploitation in 30 days · 14th percentile

○ In CISA KEV ○ Public exploit / PoC

Impact if exploited

5.3CVSS 4.0 · MEDIUM

  • ConfidentialityLow
  • IntegrityNone
  • AvailabilityNone

What an attacker needs

  • ⚠Access: Must sit on the same / adjacent network
  • ✓Privileges: No account or privileges required
  • ✓User interaction: No user interaction needed
  • ✓Complexity: No special conditions — reliably repeatable
  • ✓Requirements: No special attack requirements

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept & exploit code

Test against your own equipment

curl -s https://vulnpedia.com/cve/CVE-2026-101946/poc.jsonMachine-readable PoC index for this CVE (for automation).

Listed for defensive triage, patch verification, and authorized testing on systems you own. Machine-readable: /cve/CVE-2026-101946/poc.json

Affected

Vendors Juniper Networks

Products Junos Os Junos Os Evolved

Weakness (CWE)

  • CWE-125: Out-of-bounds Read

CVSS vector

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/AU:Y/R:A/V:C/RE:M

All CVSS metrics

  • LOW 3.5 v3.1 · CNA Primary
    CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
  • MEDIUM 5.3 v4.0 · CNA Primary
    CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/AU:Y/R:A/V:C/RE:M
  • MEDIUM 5.3 v4.0 · NVD Secondary
    CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:C/RE:M/U:X
  • LOW 3.5 v3.1 · NVD Secondary
    CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References

Sources: NVD · CVE.org · EPSS