CVE-2026-101995
Junos OS and Junos OS Evolved: Malformed ICCP packets cause l2ald memory disclosure and disruption
An Improper Validation of Specified Quantity in Input vulnerability in the
l2ald
of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent attacker with access to an ICCP peer session to cause memory disclosure and disruption of the l2ald daemon via malformed ICCP packets.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Junos OS and Junos OS Evolved: Malformed ICCP packets cause l2ald memory disclosure and disruption
An Improper Validation of Specified Quantity in Input vulnerability in the
l2ald
of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent attacker with access to an ICCP peer session to cause memory disclosure and disruption of the l2ald daemon via malformed ICCP packets.
- Record
CVE-2026-101995- CVSS 4.0
- 5.3 Medium
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N - CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Weakness
- CWE-1284
- Updated
- 2026-11-02
EUVDEUVD-2026-101444
An Improper Validation of Specified Quantity in Input vulnerability in the
l2ald
of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent attacker with access to an ICCP peer session to cause memory disclosure and disruption of the l2ald daemon via malformed ICCP packets.
- Record
EUVD-2026-101444- CVSS 4.0
- 5.3 Medium
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-j9q6-h4ww-m2gp
An Improper Validation of Specified Quantity in Input vulnerability in the l2ald of Juniper...
An Improper Validation of Specified Quantity in Input vulnerability in the
l2ald
of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent attacker with access to an ICCP peer session to cause memory disclosure and disruption of the l2ald daemon via malformed ICCP packets.
- Record
GHSA-j9q6-h4ww-m2gp- CVSS 4.0
- 5.3 Medium
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Weakness
- CWE-1284
- Updated
- 2026-11-02
NVD
An Improper Validation of Specified Quantity in Input vulnerability in the
l2ald
of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent attacker with access to an ICCP peer session to cause memory disclosure and disruption of the l2ald daemon via malformed ICCP packets.
- Record
CVE-2026-101995- CVSS 4.0
- 5.3 Medium
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Weakness
- CWE-1284
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-101995 is a medium vulnerability (CVSS 5.3) in Juniper Networks Junos Os, published October 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.22%, the 13th percentile. No source names a fixed version.