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CVE-2020-1883

15
FAUCET Score

CVE-2020-1883 is a memory leak vulnerability affecting Huawei NIP6800, Secospace USG6600, and USG9500 products. An attacker with high privileges can exploit this by continuously performing specific operations, leading to service disruption. Rated Medium (CVSS 4.9), it requires high privileges and has a high impact on availability, but no impact on confidentiality or integrity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
v500r001c60spc500CPE matchmatch criteria
cpe:2.3:o:huawei:nip6800_firmware:v500r001c60spc500:*:*:*:*:*:*:*
v500r001c30spc200CPE matchmatch criteria
cpe:2.3:o:huawei:secospace_usg6600_firmware:v500r001c30spc200:*:*:*:*:*:*:*
v500r001c30spc600CPE matchmatch criteria
cpe:2.3:o:huawei:secospace_usg6600_firmware:v500r001c30spc600:*:*:*:*:*:*:*
v500r001c60spc500CPE matchmatch criteria
cpe:2.3:o:huawei:secospace_usg6600_firmware:v500r001c60spc500:*:*:*:*:*:*:*
v500r001c30spc200CPE matchmatch criteria
cpe:2.3:o:huawei:usg9500_firmware:v500r001c30spc200:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.9MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.80%
Probability of exploitation in next 30 days
EPSS Percentile
52.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0080 is in the 54th percentile among its peer group of 3,565 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, 0.0 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-20200603-01-memory-en
Vendor Advisory