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Back to active CVEs
Medium · CVSS 6.5CVE-2026-77706

Denial of Service via Maliciously Compressed Spreadsheet File in Fileorbis's FileOrbis NextGen FileServerCVE-2026-77706

Answer in brief

CVE-2026-77706 records a Medium severity (CVSS 6.5) vulnerability in Denial of Service via Maliciously Compressed Spreadsheet File in Fileorbis's FileOrbis NextGen FileServer. The current sources do not mark it as known exploited. The current feed maps Fileorbis Bilişim Hizmetleri Ticaret Anonim Şirketi/FileOrbis NextGen FileServer (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 13, 2026Updated Nov 13, 2026Source checked Nov 13, 2026First seen by HOL Nov 13, 2026Material review Nov 13, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.5
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Fileorbis Bilişim Hizmetleri Ticaret Anonim Şirketi/FileOrbis NextGen FileServer (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Fileorbis Bilişim Hizmetleri Ticaret Anonim Şirketi/FileOrbis NextGen FileServergeneric>=0 <12.712.7

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Fileorbis Bilişim Hizmetleri Ticaret Anonim Şirketi/FileOrbis NextGen FileServer.
  2. 2Review the reported fix. Update Fileorbis Bilişim Hizmetleri Ticaret Anonim Şirketi/FileOrbis NextGen FileServer to 12.7 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Nov 13, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 13, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 13, 2026

Sources and claim methodology

  • Source referencesiberguvenlik.gov.tr
Upstream source description

Improper handling of highly compressed data (data amplification) vulnerability in Fileorbis Bilişim Hizmetleri Ticaret Anonim Şirketi FileOrbis NextGen FileServer allows Sustained Client Engagement. This issue affects FileOrbis NextGen FileServer: before 12.7.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-409
Source
CVE List V5
Source checked
Nov 13, 2026
References
1 linked source
Open source record