CVE-2026-103391
mediumAn Out-of-bounds Write vulnerability in the SSR TCP proxy/optimization path in Juniper Networks Session Smart Router allows an attacker to corrupt forwarded pa…
An Out-of-bounds Write vulnerability in the SSR TCP proxy/optimization path in Juniper Networks Session Smart Router allows an attacker to corrupt forwarded packet data and potentially cause a data-plane crash via a transit TCP packet with a crafted TCP option length.
CVSS
5.3
5.3 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Severity source: NVD CVSS v3.1 (sirt@juniper.net)
Timeline (UTC)
Published: 2026-10-28 17:17
Modified: 2026-10-28 17:17
NVD status: Awaiting Analysis
Last synced 1 day ago
Verified against the source API 2026-10-28 17:38 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://supportportal.juniper.net/JSA112183 sirt@juniper.net
Data sources
NVD CVE API 2.0 — fetched 2026-10-28 17:38 UTC · record ↗