What is the CVSS score of CVE-2016-8795?

CVE-2016-8795 has a CVSS 3.0 base score of 5.9 (Medium). CVSS vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.2%.

Secospace Usg6600 Firmware CVE-2016-8795

MEDIUM

Integer Overflow or Wraparound (CWE-190)

2017-04-02 psirt@huawei.com

Buffer Overflow Integer Overflow Huawei Secospace Usg6600 Firmware Cloudengine 12800 Firmware Cloudengine 6800 Firmware Cloudengine 7800 Firmware Cloudengine 8800 Firmware Cloudengine 5800 Firmware

5.9

CVSS 3.0 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-190 ASVS 5.0 V15 - Secure Coding and Architecture Integer overflow checks MITRE ATT&CK 1 technique across 1 tactic: Execution 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 5.9 (MEDIUM). Attack characteristics: network attack vector, high complexity, no privileges required, no user interaction not required. EPSS exploitation probability: 0.24%.
Exploit ScenarioDerived	A remote attacker could cause unexpected behavior through arithmetic overflow by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAI

Huawei CloudEngine 12800 with software V100R002C00, V100R003C00, V100R003C10, V100R005C00, V100R005C10, V100R006C00; CloudEngine 5800 with software V100R002C00, V100R003C00, V100R003C10, V100R005C00,. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate arithmetic operations, use safe integer libraries, check bounds before allocation.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Integer Overflow (CWE-190), which allows attackers to cause unexpected behavior through arithmetic overflow. Huawei CloudEngine 12800 with software V100R002C00, V100R003C00, V100R003C10, V100R005C00, V100R005C10, V100R006C00; CloudEngine 5800 with software V100R002C00, V100R003C00, V100R003C10, V100R005C00, V100R005C10, V100R006C00; CloudEngine 6800 with software V100R002C00, V100R003C00, V100R003C10, V100R005C00, V100R005C10, V100R006C00; CloudEngine 7800 with software V100R003C00, V100R003C10, V100R005C00, V100R005C10, V100R006C00; CloudEngine 8800 with software V100R006C00; and Secospace USG6600 with software V500R001C00 allow remote unauthenticated attackers to craft specific IPFPM packets to trigger an integer overflow and cause the device to reset. Affected products include: Huawei Cloudengine 5800 Firmware, Huawei Cloudengine 6800 Firmware, Huawei Cloudengine 12800 Firmware, Huawei Cloudengine 7800 Firmware, Huawei Cloudengine 8800 Firmware.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 5.9 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

DescriptionCVE.org

Huawei CloudEngine 12800 with software V100R002C00, V100R003C00, V100R003C10, V100R005C00, V100R005C10, V100R006C00; CloudEngine 5800 with software V100R002C00, V100R003C00, V100R003C10, V100R005C00, V100R005C10, V100R006C00; CloudEngine 6800 with software V100R002C00, V100R003C00, V100R003C10, V100R005C00, V100R005C10, V100R006C00; CloudEngine 7800 with software V100R003C00, V100R003C10, V100R005C00, V100R005C10, V100R006C00; CloudEngine 8800 with software V100R006C00; and Secospace USG6600 with software V500R001C00 allow remote unauthenticated attackers to craft specific IPFPM packets to trigger an integer overflow and cause the device to reset.

Threat Intelligence Overview

EPSS Score

0.2%

Top 53% exploitable

Data Quality

3 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 MEDIUM

CISA KEV No

Public POC No

EPSS 0.2%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

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

None

System Exposure· derived

Open

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +30

PoC: 0

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.

Integer Overflow MEDIUM

Integer overflow occurs when an arithmetic operation produces a result that exceeds the maximum value a given integer type can store.

Affected Products (CPE)CVE.org

cpe:2.3:o:huawei:cloudengine_5800_firmware:v100r002c00:*:*:*:*:*:*:*

cpe:2.3:o:huawei:cloudengine_5800_firmware:v100r003c00:*:*:*:*:*:*:*

cpe:2.3:o:huawei:cloudengine_5800_firmware:v100r003c10:*:*:*:*:*:*:*

cpe:2.3:o:huawei:cloudengine_5800_firmware:v100r005c00:*:*:*:*:*:*:*

cpe:2.3:o:huawei:cloudengine_5800_firmware:v100r005c10:*:*:*:*:*:*:*

cpe:2.3:o:huawei:cloudengine_5800_firmware:v100r006c00:*:*:*:*:*:*:*

cpe:2.3:o:huawei:cloudengine_6800_firmware:v100r002c00:*:*:*:*:*:*:*

cpe:2.3:o:huawei:cloudengine_6800_firmware:v100r003c00:*:*:*:*:*:*:*

cpe:2.3:o:huawei:cloudengine_6800_firmware:v100r003c10:*:*:*:*:*:*:*

cpe:2.3:o:huawei:cloudengine_6800_firmware:v100r005c00:*:*:*:*:*:*:*

cpe:2.3:o:huawei:cloudengine_6800_firmware:v100r005c10:*:*:*:*:*:*:*

cpe:2.3:o:huawei:cloudengine_6800_firmware:v100r006c00:*:*:*:*:*:*:*

cpe:2.3:o:huawei:cloudengine_12800_firmware:v100r002c00:*:*:*:*:*:*:*

cpe:2.3:o:huawei:cloudengine_12800_firmware:v100r003c00:*:*:*:*:*:*:*

cpe:2.3:o:huawei:cloudengine_12800_firmware:v100r003c10:*:*:*:*:*:*:*

cpe:2.3:o:huawei:cloudengine_12800_firmware:v100r005c00:*:*:*:*:*:*:*

cpe:2.3:o:huawei:cloudengine_12800_firmware:v100r005c10:*:*:*:*:*:*:*

cpe:2.3:o:huawei:cloudengine_12800_firmware:v100r006c00:*:*:*:*:*:*:*

cpe:2.3:o:huawei:cloudengine_7800_firmware:v100r003c00:*:*:*:*:*:*:*

cpe:2.3:o:huawei:cloudengine_7800_firmware:v100r003c10:*:*:*:*:*:*:*

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References

Advisories & patches

ADVISORY http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20161123-01-vrp-en REF http://www.securityfocus.com/bid/94504

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