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CVE-2020-1883Huawei products NIP6800;Secospace USG6600;USG9500 have a memory leak vulnerability. An attacker with high privileges exploits this…

Description

Huawei products NIP6800;Secospace USG6600;USG9500 have a memory leak vulnerability. An attacker with high privileges exploits this vulnerability by continuously performing specific operations. Successful exploitation of this vulnerability can cause service abnormal.

Timeline

  1. ID reserved

    By huawei

  2. · 6 months later

    Published

  3. · 4 years later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2020-1883, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified3.1Medium4.9CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.80% · top 43% of all CVEs (12 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.9.

Affected products

  • NIP6800

    • affected V500R001C60SPC500

  • Secospace USG6600

    • affected V500R001C30SPC200
    • affected V500R001C30SPC600
    • affected V500R001C60SPC500

  • USG9500

    • affected V500R001C30SPC200
    • affected V500R001C30SPC600
    • affected V500R001C60SPC500

References

References1

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .