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CVE-2026-13377

🗓️ 02 Jul 2026 23:05:32Reported by WatchGuardType 
cve
 cve
🔗 web.nvd.nist.gov👁 7 Views

WatchGuard Firebox stored cross-site scripting in SIP Proxy config; affects certain Fireware OS versions.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-13377
2 Jul 202623:05
attackerkb
Cvelist
CVE-2026-13377 WatchGuard Firebox Stored Cross-Site-Scripting (XSS) Vulnerability in SIP Proxy Configuration
2 Jul 202623:05
cvelist
EUVD
EUVD-2026-41452
3 Jul 202600:31
euvd
NVD
CVE-2026-13377
3 Jul 202600:16
nvd
Positive Technologies
PT-2026-55333
2 Jul 202600:00
ptsecurity
CNA
Node
watchguardfireware_osRange12.012.12
OR
watchguardfireware_osRange12.512.5.18
OR
watchguardfireware_osRange2025.12026.2
[
  {
    "defaultStatus": "unaffected",
    "product": "Fireware OS",
    "vendor": "WatchGuard",
    "versions": [
      {
        "lessThanOrEqual": "12.12",
        "status": "affected",
        "version": "12.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "12.5.18",
        "status": "affected",
        "version": "12.5",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "2026.2",
        "status": "affected",
        "version": "2025.1",
        "versionType": "semver"
      }
    ]
  }
]

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03 Jul 2026 00:16Current
5.7Medium risk
Vulners AI Score5.7
CVSS 44.8
7