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CVE-2020-9101

23
FAUCET Score

CVE-2020-9101 describes an out-of-bounds write vulnerability in various Huawei IPS Module, NGFW Module, Secospace USG6300/6500/6600, and USG9500 products. An unauthenticated attacker can exploit this by sending specially crafted malformed packets, leading to insufficient packet validation and causing the affected product's process to reboot. With a CVSS score of 6.5 (Medium), this vulnerability is network-adjacent (AV:A) and requires no user interaction (UI:N), but its primary impact is a denial of service (A:H) due to the process reboot. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
v500r005c00CPE matchmatch criteria
cpe:2.3:o:huawei:ips_module_firmware:v500r005c00:*:*:*:*:*:*:*
v500r005c10CPE matchmatch criteria
cpe:2.3:o:huawei:ips_module_firmware:v500r005c10:*:*:*:*:*:*:*
v500r005c00CPE matchmatch criteria
cpe:2.3:o:huawei:ngfw_module_firmware:v500r005c00:*:*:*:*:*:*:*
v500r005c10CPE matchmatch criteria
cpe:2.3:o:huawei:ngfw_module_firmware:v500r005c10:*:*:*:*:*:*:*
v500r001c30CPE matchmatch criteria
cpe:2.3:o:huawei:secospace_usg6300_firmware:v500r001c30:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.33%
Probability of exploitation in next 30 days
EPSS Percentile
25.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0033 is in the 38th percentile among its peer group of 1,802 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

huawei.com / en/psirt/security-advisories/huawei-sa-20200715-01-outofboundswrite-en
Vendor Advisory