Juniper Networks Session Smart Router · Out-of-Bounds Read Vulnerability
Source GCVE Database
Not known to be exploited · CVSS 4.3 Medium · fixed in 7.2.3 : update Session Smart Router when convenient.
Data as of 28 Oct 2026, 20:01 UTC
- Patch
- Available – fixed in 7.2.3, 7.1.7, 7.0.5
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 28 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade Session Smart Router to 7.2.3, 7.1.7 or 7.0.5.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Juniper NetworksSession Smart Router | Affected
| Fixed in
|
| Juniper NetworksSession Smart Router | Affected
| Fixed in
|
| Juniper NetworksSession Smart Router | Affected
| Fixed in
|
AI-suggested
If you cannot patch yet, network administrators should consider limiting Layer 2 adjacency to untrusted devices and monitor for unusual VRRPv3 traffic patterns.
Description
An Out-of-Bounds Read vulnerability exists in the VRRP implementation of Juniper Networks Session Smart Router. This flaw allows an L2-adjacent attacker to read stale memory contents or cause a system fault by sending a specially crafted VRRPv3 advertisement. The vulnerability has a medium severity rating with a CVSS score of 4.3.