CVE•Published 2026-10-28•Modified 2026-10-28•0 articles on news•5 live references•NVD data
CVE-2026-103391
Vulnerability data via NVD (ingested)
CVSS v3.1
5.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS percentile
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Weaknesses (CWE)
Description
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.
Timeline
Published 2026-10-28
Modified 2026-10-28
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-103391Hosts Shodan has explicitly fingerprinted as vulnerable.
More intel sources (5)
Shodan report
vuln:CVE-2026-103391Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-103391Censys host search filtered to this CVE id.
grep.app
CVE-2026-103391Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-103391GitHub code search for direct mentions.
Google dork
"CVE-2026-103391" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (1)
We haven't classified any articles referencing CVE-2026-103391 yet. The external references above still apply.