October 4, 2026

CVE Watchtower

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CVE-2025-25249NVD

Vulnerability Summary

A heap-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0.0 through 7.0.17, FortiOS 6.4 all versions, FortiSwitchManager 7.2.0 through 7.2.6, FortiSwitchManager 7.0.0 through 7.0.5 allows attacker to execute unauthorized code or commands via specially crafted packets
Severity Level
HIGH(8.1)
Published Date
Jan 13, 2026
Last Modified
Sep 10, 2026
Exploitation Status
ACTIVE
EPSS Score (30-Day)
3.86%Probability
Root Weakness (CWE)
CWE-122: Unknown/Unlisted Weakness ↗
Refer to the official MITRE database for detailed architectural specifications regarding this weakness.
CWE-787: Unknown/Unlisted Weakness ↗
Refer to the official MITRE database for detailed architectural specifications regarding this weakness.
CVSS v3.1 Base Metrics — Score 8.1 (HIGH)
Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

Affected & Patched Versions

Affected Versions
  • Fortinet Fortios >= 6.4.0 and < 7.0.18
  • Fortinet Fortios >= 7.2.0 and < 7.2.12
  • Fortinet Fortios >= 7.4.0 and < 7.4.9
  • Fortinet Fortios >= 7.6.0 and < 7.6.4
  • Fortinet Fortiswitchmanager >= 7.0.0 and < 7.0.6
  • Fortinet Fortiswitchmanager >= 7.2.0 and < 7.2.7
  • Fortinet Fortisase
  • Siemens Ruggedcom Ape1808 Firmware
Patched Versions
  • Fortinet Fortios 7.0.18
  • Fortinet Fortios 7.2.12
  • Fortinet Fortios 7.4.9
  • Fortinet Fortios 7.6.4
  • Fortinet Fortiswitchmanager 7.0.6
  • Fortinet Fortiswitchmanager 7.2.7
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🚫Ad-Free — Uninterrupted experience.
🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
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External References