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CVE-2020-1876

19
FAUCET Score

CVE-2020-1876 is an out-of-bounds write vulnerability affecting specific versions of Huawei NIP6800, Secospace USG6600, and USG9500 products. An unauthenticated attacker can exploit this by sending specially crafted malformed packets, leading to a denial-of-service condition through a process reboot. Rated with a CVSS score of 7.5 (HIGH), this vulnerability has a low attack complexity and requires no user interaction, but its impact is limited to availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
v500r001c30CPE matchmatch criteria
cpe:2.3:o:huawei:nip6800_firmware:v500r001c30:*:*:*:*:*:*:*
v500r001c60spc500CPE matchmatch criteria
cpe:2.3:o:huawei:nip6800_firmware:v500r001c60spc500:*:*:*:*:*:*:*
v500r005c00CPE matchmatch criteria
cpe:2.3:o:huawei:nip6800_firmware:v500r005c00:*:*:*:*:*:*:*
v500r001c30spc600CPE matchmatch criteria
cpe:2.3:o:huawei:secospace_usg6600_firmware:v500r001c30spc600:*:*:*:*:*:*:*
v500r001c60spc500CPE matchmatch criteria
cpe:2.3:o:huawei:secospace_usg6600_firmware:v500r001c60spc500:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.76%
Probability of exploitation in next 30 days
EPSS Percentile
51.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0076 is in the 27th percentile among its peer group of 51,551 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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-20200219-01-outofwrite-en
Vendor Advisory