CVE-2026-48132
VPN gateway DoS via malformed IKE NAT-T length check
Is CVE-2026-48132 being exploited?
Not confirmed. CVE-2026-48132 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 2.1% probability of exploitation in the next 30 days.
How severe is CVE-2026-48132?
CVE-2026-48132 is rated High with a CVSS score of 8.1. 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-2026-48132?
Not known from our data. No patch reference has been recorded for CVE-2026-48132, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-48132 affect?
CVE-2026-48132 affects Security Gateway VPN appliance. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-48132?
Monitor advisories; apply firmware patch when released
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
DoS: crafted NAT-T IKE packet crashes VPN processing, interrupting VPN negotiations/traffic
Patch when possible
- affectedR82.10 with Jumbo Hotfix Take 6 or below
- affectedR82 with Jumbo Hotfix Take 91 or below
- affectedR81.20 with Jumbo Hotfix Take 127 or below
- affectedAll releases from R81.10 and below
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.