What is the CVSS score of CVE-2019-5994?

CVE-2019-5994 has a CVSS 3.0 base score of 8.8 (High). CVSS vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 2.5%.

Is there a public PoC exploit available for CVE-2019-5994?

Yes, a public proof-of-concept exploit is available for CVE-2019-5994. Prioritise patching immediately. EPSS: 2.5%.

Eos 5D Mark Iii Firmware CVE-2019-5994

HIGH

Buffer Overflow (CWE-119)

2019-08-06 vultures@jpcert.or.jp

8.8

CVSS 3.0 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-119 ASVS 5.0 V15 - Secure Coding and Architecture Bounds checking, buffer size validation MITRE ATT&CK 2 techniques across 2 tactics: Execution, Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 8.8 (HIGH). Attack characteristics: adjacent network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available.
Exploit ScenarioDerived	An attacker could exploit this vulnerability to corrupt memory to execute arbitrary code or crash the application. No authentication is required to exploit this vulnerability.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 2.5% exploitation probability (EPSS)

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AnalysisAI

Buffer overflow in PTP (Picture Transfer Protocol) of EOS series digital cameras (EOS-1D X firmware version 2.1.0 and earlier, EOS-1D X MKII firmware version 1.1.6 and earlier, EOS-1D C firmware. Rated high severity (CVSS 8.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use memory-safe languages or bounds-checking. Enable ASLR, DEP/NX, stack canaries. Use safe string functions.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified as Buffer Overflow (CWE-119), which allows attackers to corrupt memory to execute arbitrary code or crash the application. Buffer overflow in PTP (Picture Transfer Protocol) of EOS series digital cameras (EOS-1D X firmware version 2.1.0 and earlier, EOS-1D X MKII firmware version 1.1.6 and earlier, EOS-1D C firmware version 1.4.1 and earlier, EOS 5D MARK III firmware version 1.3.5 and earlier, EOS 5D MARK IV firmware version 1.2.0 and earlier, EOS 5DS firmware version 1.1.2 and earlier, EOS 5DS R firmware version 1.1.2 and earlier, EOS 6D firmware version 1.1.8 and earlier, EOS 6D MARK II firmware version 1.0.4 and earlier, EOS 7D MARK II firmware version 1.1.2 and earlier, EOS 70 D firmware version 1.1.2 and earlier, EOS 80 D firmware version 1.0.2 and earlier, EOS KISS X7I / EOS D REBEL T5I / EOS 700D firmware version 1.1.5 and earlier, EOS KISS X8I / EOS D REBEL T6I / EOS 750D firmware version 1.0.0 and earlier, EOS KISS X9I / EOS D REBEL T7I / EOS 800D firmware version 1.0.1 and earlier, EOS KISS X7 / EOS D REBEL SL1 / EOS 100D firmware version 1.0.1 and earlier, EOS KISS X9 / EOS D REBEL SL2 / EOS 200D firmware version 1.0.1 and earlier, EOS KISS X10 / EOS D REBEL SL3 / EOS 200D / EOS 250D firmware version 1.0.1 and earlier, EOS 8000D / EOS D REBEL T6S / EOS 760D firmware version 1.0.0 and earlier, EOS 9000D / EOS 77D firmware version 1.0.2 and earlier, EOS KISS X70 / EOS D REBEL T5 / EOS 1200D firmware version 1.0.2 and earlier, EOS D REBEL T5 RE / EOS 1200D MG / EOS HI firmware version 1.0.2 and earlier, EOS KISS X80 / EOS D REBEL T6 / EOS 1300D firmware version 1.1.0 and earlier, EOS KISS X90 / EOS D REBEL T7 / EOS 1500D / EOS 2000D firmware version 1.0.0 and earlier, EOS D REBEL T100 / EOS 3000D / EOS 4000D firmware version 1.0.0 and earlier, EOS R firmware version 1.3.0 and earlier, EOS RP firmware version 1.2.0 and earlier, EOS RP GOLD firmware version 1.2.0 and earlier, EOS M2 firmware version 1.0.3 and earlier, EOS M3 firmware version 1.2.0 and earlier, EOS M5 firmware version 1.0.1 and earlier, EOS M6 firmware version 1.0.1 and earlier, EOS M6(China) firmware version 5.0.0 and earlier, EOS M10 firmware version 1.1.0 and earlier, EOS M100 firmware version 1.0.0 and earlier, EOS KISS M / EOS M50 firmware version 1.0.2 and earlier) and PowerShot SX740 HS firmware version 1.0.1 and earlier, PowerShot SX70 HS firmware version 1.1.0 and earlier, and PowerShot G5Xmark II firmware version 1.0.1 and earlier allows an attacker on the same network segment to trigger the affected product being unresponsive or to execute arbitrary code on the affected product via SendObjectInfo command. Affected products include: Canon Eos-1D X Firmware, Canon Eos-1D X Mkii Firmware, Canon Eos-1D C Firmware, Canon Eos 5D Mark Iii Firmware, Canon Eos 5D Mark Iv Firmware. Version information: version 2.1.0.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 8.8 HIGH

AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionNVD

Buffer overflow in PTP (Picture Transfer Protocol) of EOS series digital cameras (EOS-1D X firmware version 2.1.0 and earlier, EOS-1D X MKII firmware version 1.1.6 and earlier, EOS-1D C firmware version 1.4.1 and earlier, EOS 5D MARK III firmware version 1.3.5 and earlier, EOS 5D MARK IV firmware version 1.2.0 and earlier, EOS 5DS firmware version 1.1.2 and earlier, EOS 5DS R firmware version 1.1.2 and earlier, EOS 6D firmware version 1.1.8 and earlier, EOS 6D MARK II firmware version 1.0.4 and earlier, EOS 7D MARK II firmware version 1.1.2 and earlier, EOS 70 D firmware version 1.1.2 and earlier, EOS 80 D firmware version 1.0.2 and earlier, EOS KISS X7I / EOS D REBEL T5I / EOS 700D firmware version 1.1.5 and earlier, EOS KISS X8I / EOS D REBEL T6I / EOS 750D firmware version 1.0.0 and earlier, EOS KISS X9I / EOS D REBEL T7I / EOS 800D firmware version 1.0.1 and earlier, EOS KISS X7 / EOS D REBEL SL1 / EOS 100D firmware version 1.0.1 and earlier, EOS KISS X9 / EOS D REBEL SL2 / EOS 200D firmware version 1.0.1 and earlier, EOS KISS X10 / EOS D REBEL SL3 / EOS 200D / EOS 250D firmware version 1.0.1 and earlier, EOS 8000D / EOS D REBEL T6S / EOS 760D firmware version 1.0.0 and earlier, EOS 9000D / EOS 77D firmware version 1.0.2 and earlier, EOS KISS X70 / EOS D REBEL T5 / EOS 1200D firmware version 1.0.2 and earlier, EOS D REBEL T5 RE / EOS 1200D MG / EOS HI firmware version 1.0.2 and earlier, EOS KISS X80 / EOS D REBEL T6 / EOS 1300D firmware version 1.1.0 and earlier, EOS KISS X90 / EOS D REBEL T7 / EOS 1500D / EOS 2000D firmware version 1.0.0 and earlier, EOS D REBEL T100 / EOS 3000D / EOS 4000D firmware version 1.0.0 and earlier, EOS R firmware version 1.3.0 and earlier, EOS RP firmware version 1.2.0 and earlier, EOS RP GOLD firmware version 1.2.0 and earlier, EOS M2 firmware version 1.0.3 and earlier, EOS M3 firmware version 1.2.0 and earlier, EOS M5 firmware version 1.0.1 and earlier, EOS M6 firmware version 1.0.1 and earlier, EOS M6(China) firmware version 5.0.0 and earlier, EOS M10 firmware version 1.1.0 and earlier, EOS M100 firmware version 1.0.0 and earlier, EOS KISS M / EOS M50 firmware version 1.0.2 and earlier) and PowerShot SX740 HS firmware version 1.0.1 and earlier, PowerShot SX70 HS firmware version 1.1.0 and earlier, and PowerShot G5Xmark II firmware version 1.0.1 and earlier allows an attacker on the same network segment to trigger the affected product being unresponsive or to execute arbitrary code on the affected product via SendObjectInfo command.

Threat Intelligence Overview

EPSS Score

2.5%

Top 17% exploitable

Exploit

POC

Public exploit code exists

Data Quality

2 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC Yes

EPSS 2.5%

Patch available No

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

Poc

System Exposure· derived

Controlled

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +2

CVSS: +44

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Buffer Overflow HIGH

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Remote Code Execution CRITICAL

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.