Widely deployed core network hardware; privilege escalation could disrupt networks across enterprises/ISP environments.
CVE-2026-33788
Local low-privilege user can escalate to high privileges on PTX FPCs
Is CVE-2026-33788 being exploited?
Not confirmed. CVE-2026-33788 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.11% probability of exploitation in the next 30 days.
How severe is CVE-2026-33788?
CVE-2026-33788 is rated High with a CVSS score of 8.5. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-33788?
Yes. A fix has been recorded for CVE-2026-33788. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-33788 affect?
CVE-2026-33788 affects Juniper PTX Series FPCs, Junos OS Evolved on PTX10004/10008/10016 with JNP10K-LC1201/LC1202. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-33788?
Upgrade to fixed EVO releases for Junos OS Evolved PTX FPCs.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Local authenticated attacker can access FPCs with high privileges, risking full component compromise.
Patch when possible
- affected< 21.2R3-S8-EVO
- affected>= 21.4-EVO and < 21.4R3-S7-EVO
- affected>= 22.2-EVO and < 22.2R3-S4-EVO
- affected>= 22.3-EVO and < 22.3R3-S3-EVO
- affected>= 22.4-EVO and < 22.4R3-S2-EVO
- affected>= 23.2-EVO and < 23.2R2-EVO
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.