cv::Jpeg2KDecoder::readComponent8u of the file modules/imgcodecs/src/grfmt_jpeg2000.cpp of the component Image File Handler. Upgrading eliminates this vulnerability. A possible mitigation has been published 5 months after the disclosure of the vulnerability.
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OpenCV 3.3.1 Image File grfmt_jpeg2000.cpp readComponent8u memory corruption
A vulnerability was found in OpenCV 3.3.1 (Image Processing Software) and classified as critical. Affected by this issue is the function cv::Jpeg2KDecoder::readComponent8u of the file modules/imgcodecs/src/grfmt_jpeg2000.cpp of the…
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A vulnerability was found in OpenCV 3.3.1 (Image Processing Software) and classified as critical. Affected by this issue is the function
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Syntax validiert (0 Fehler)
title: Detect Exploitation - OpenCV 3.3.1 Image File grfmt_jpeg2000.cpp readComponent8u memory corruption
id: b377f0c1-9689-4893-bcc5-2e25d3aec427
status: experimental
description: Automatisch generierte SIEM-Erkennungsregel basierend auf CTI Intelligence
references:
- https://tsecurity.de/
author: iShareStuff CTI Automated Detection Engine
date: 2026-09-25
logsource:
category: network_connection
product: any
detection:
selection:
CommandLine|contains:
- 'exploit'
condition: selection
falsepositives:
- Legitime administrative Zugriffe oder Penetrationstests
level: high
tags:
- attack.initial_accessSyntax validiert (0 Fehler)
rule CTI_Threat_Indicator {
meta:
author = "iShareStuff CTI Automated Detection Engine"
date = "2026-09-25"
description = "YARA Signature for "
strings:
$str = "OpenCV 3.3.1 Image File grfmt_" ascii wide
condition:
any of them
}Syntax validiert (0 Fehler)
index=security sourcetype IN ("cisco:asa", "pan:traffic", "zeek_conn", "suricata", "WinEventLog:Security")
("OpenCV 331 Image File grfmt_jpeg2000cpp ")
| stats count earliest(_time) as first_seen latest(_time) as last_seen by src_ip, dest_ip, dest_host, signature
| eval first_seen=strftime(first_seen, "%Y-%m-%d %H:%M:%S"), last_seen=strftime(last_seen, "%Y-%m-%d %H:%M:%S")
| sort - countSyntax validiert (0 Fehler)
message: "*OpenCV 331 Image File grfmt_jpeg2000cpp *"Syntax validiert (0 Fehler)
CommonSecurityLog
| where Message has "OpenCV 331 Image File grfmt_jpeg2000cpp "
| summarize EventCount = count(), FirstSeen = min(TimeGenerated), LastSeen = max(TimeGenerated) by SourceIP, DestinationIP, DestinationPort, Activity
| extend DetectionRule = "iShareStuff-CTI-Compiled"
| sort by EventCount desc🎯
MITRE ATT&CK Matrix Navigator 14 Taktiken
Reconnaissance
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Resource Development
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Initial Access
Execution
Persistence
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Privilege Escalation
Defense Evasion
Credential Access
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Discovery
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Lateral Movement
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Collection
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Command and Control
Exfiltration
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Impact
tsecurity.de Cognitive Threat RAG
Fokus-Vektor:
Kognitive Analyse für identifizierte Bedrohung: Erhöhte Bedrohungslage im Bereich OpenCV 3.3.1 Image File grfmt_jpeg2000.c.... Basierend auf 368k Vektor-Korrelationen werden sofortige Isolationsmaßnahmen für betroffene Endpunkte empfohlen.
🛡️ Angriffsfläche & Exposure
Netzwerk/Remote-Zugriff ohne Vorauthentifizierung möglich.
⚡ Empfohlene Sofortmaßnahmen
- 1. Perimeter-Inspektion: Relevante Portfreigaben und exponierte Endpunkte unverzüglich scannen.
- 2. Patch-Applikation: Hersteller-Hotfix einspielen oder betroffene Daemons in isolierte DMZ-Segmente überführen.
- 3. Telemetrie & EDR-Alerts: Prozessaufrufe und Child-Processes auf anomale Shell-Spawns überwachen.
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