CVE-2026-126258
A NVD · · CVE-2026-126258
Admiralty grading (A–F · 1–6)
Source reliability
- A Completely reliable
- B Usually reliable
- C Fairly reliable
- D Not usually reliable
- E Unreliable
- F Cannot be judged
Information credibility
- 1 Confirmed
- 2 Probably true
- 3 Possibly true
- 4 Doubtful
- 5 Improbable
- 6 Cannot be judged
NATO Admiralty (AJP-2.1) grades confidence, independent of the risk score. Cross-source corroboration isn't tracked for non-CVE news, so single-source items are capped at a lower credibility number; a low number does not imply low quality.
Key metrics
- CVSS
- 7.5
- EPSS
- 0%
Key insight
The decisive detail is that the attack is unauthenticated via the wad port and specifically crashes proxy and ZTNA sessions , an availability risk for internet-exposed ZTNA access rather than just a patch note.
Description
Fortinet FortiOS 8.0.0 and FortiOS 7.6.7 contain a stack-based buffer overflow that can be exploited via the wad port. An unauthenticated attacker can crash proxy or ZTNA sessions using specially crafted HTTP or HTTPS requests. FortiGate devices exposing proxy or ZTNA functionality with a reachable wad port are affected. The report gives no information on exploitation status (KEV listing, public PoC, active attacks); it primarily describes an availability impact.
Risk score
- cvss base
- 75.00
- kev bonus
- 0.00
- epss bonus
- 0.00
- poc bonus
- 0.00
- raw before weight
- 75.00
- industry weight
- 1.21
- freshness factor
- 1.00
- exploitability factor
- 1.00
- days old
- 0.00
- vendor mismatch penalty
- 0.00
Path: operational