VulnSocial

CVE-2026-3343Disclosure(watchguard / firebox_m270)

LOWCVSS 6.1 · MEDIUM

Signal is active with 3 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 reflected cross-site scripting (XSS) vulnerability in the Fireware OS Web UI enabled execution of malicious JavaScript in the context of an authenticated management user's browser when they click on a specially crafted link.

watchguard CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-79

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

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

  • firebox_m270
  • firebox_m290
  • firebox_m295
  • firebox_m370

Threat summary

  • 3 mentions across 1 observed day

What's happening

  • Technical details provided in 3 signals
  • Disclosure: 3 classified signals
  • 3 total mentions across 1 day

Affected systems

Vendors
watchguard
Products
firebox_m270firebox_m290firebox_m295firebox_m370firebox_m390firebox_m395firebox_m440firebox_m4600firebox_m470firebox_m4800

1 version affected across 37 products

Deep dive

Activity timeline3 mentions / 1d
01223Mentions · 2026-03-03: 3Technical Details · 2026-03-03: 303-03
Signal classification1 categories
Disclosure
3100.0%
Referenced assets3 URLs
Full discourse3 posts
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-3343 Reflected Cross-Site Scripting Vulnerability in WatchGuard Fireware OS Web UI https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-3343

    Post summary

    A reflected XSS vulnerability (CVE-2026-3343) has been disclosed in WatchGuard Fireware OS Web UI, with details available via the provided link.

    0001059
    4.0K followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-3343 A reflected cross-site scripting (XSS) vulnerability in the Fireware OS Web UI enabled execution of malicious JavaScript in the context of an authenticated management u… https://www.cve.org/CVERecord?id=CVE-2026-3343 ----- Traducción: CVE-2026-3343 Una… http://infoflow.cloud`

    Post summary

    The post announces CVE-2026-3343, a reflected XSS flaw in Fireware OS Web UI that permits authenticated users to execute malicious JavaScript.

    0000039
    55 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-3343 A reflected cross-site scripting (XSS) vulnerability in the Fireware OS Web UI enabled execution of malicious JavaScript in the context of an authenticated management u… https://www.cve.org/CVERecord?id=CVE-2026-3343

    Post summary

    The text announces a reflected XSS vulnerability in Fireware OS Web UI that permits authenticated users to execute malicious JavaScript.

    00000239
    56.6K followersView on X
CPE platform detail37 entries

37 of 37 entries

PartVendorProductVersionTarget SWTarget HW
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---
HWwatchguardfireboxcloud---
HWwatchguardfireboxv---
OSwatchguardfireware---

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