VulnSocial

CVE-2026-3987Disclosure(watchguard / firebox_cloud)

LOWCVSS 7.2 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A path traversal vulnerability in the Fireware OS Web UI on WatchGuard Firebox systems may allow a privileged authenticated remote attacker to execute arbitrary code in the context of an elevated system process.

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0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-22

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • firebox_cloud
  • firebox_m270
  • firebox_m290
  • firebox_m295

Threat summary

  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 2 classified signals
  • Peaked 1d ago at 1 mentions (2026-04-02); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
watchguard
Products
firebox_cloudfirebox_m270firebox_m290firebox_m295firebox_m370firebox_m390firebox_m395firebox_m440firebox_m4600firebox_m470

1 version affected across 37 products

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-04-02: 1Mentions · 2026-04-13: 1Technical Details · 2026-04-02: 104-0204-13
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
Full discourse2 posts
  • CERT-PY@CERTpy
    Disclosure

    ⚠️ Vulnerabilidad en productos WatchGuard ❗ CVE-2026-3987 ➡️ Más info: https://www.cert.gov.py/vulnerabilidad-en-productos-watchguard-5/ https://t.co/XHfQ4CJ4VI

    Post summary

    A CVE‑2026‑3987 vulnerability affecting WatchGuard products is referenced, with a link for further information, but no technical details or exploitation evidence are provided.

    0002095
    6.6K followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-3987 A path traversal vulnerability in the Fireware OS Web UI on WatchGuard Firebox systems may allow a privileged authenticated remote attacker to execute arbitrary code in… https://www.cve.org/CVERecord?id=CVE-2026-3987

    Post summary

    A path‑traversal flaw in WatchGuard Firebox’s Fireware OS Web UI (CVE‑2026‑3987) could let privileged, authenticated attackers execute arbitrary code.

    00000128
    56.9K followersView on X
CPE platform detail37 entries

37 of 37 entries

PartVendorProductVersionTarget SWTarget HW
Appwatchguardfirebox_cloud---
HWwatchguardfirebox_m270---
HWwatchguardfirebox_m290---
HWwatchguardfirebox_m295---
HWwatchguardfirebox_m370---
HWwatchguardfirebox_m390---
HWwatchguardfirebox_m395---
HWwatchguardfirebox_m440---
HWwatchguardfirebox_m4600---
HWwatchguardfirebox_m470---
HWwatchguardfirebox_m4800---
HWwatchguardfirebox_m495---
HWwatchguardfirebox_m5600---
HWwatchguardfirebox_m570---
HWwatchguardfirebox_m5800---
HWwatchguardfirebox_m590---
HWwatchguardfirebox_m595---
HWwatchguardfirebox_m670---
HWwatchguardfirebox_m690---
HWwatchguardfirebox_m695---
HWwatchguardfirebox_nv5---
HWwatchguardfirebox_t115-w---
HWwatchguardfirebox_t125---
HWwatchguardfirebox_t125-w---
HWwatchguardfirebox_t145---
HWwatchguardfirebox_t145-w---
HWwatchguardfirebox_t185---
HWwatchguardfirebox_t20---
HWwatchguardfirebox_t25---
HWwatchguardfirebox_t40---
HWwatchguardfirebox_t45---
HWwatchguardfirebox_t55---
HWwatchguardfirebox_t70---
HWwatchguardfirebox_t80---
HWwatchguardfirebox_t85---
HWwatchguardfireboxv---
OSwatchguardfireware---

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