How severe is CVE-2020-1843?

CVE-2020-1843 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-1843 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-1843?

CVE-2020-1843 primarily affects Huawei Hege-560 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-1843?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-1843 published?

CVE-2020-1843 was published on 2020-02-18 and last updated on 2026-06-17.

CVE-2020-1843

CVE-2020-1843 is a medium-severity vulnerability in Huawei Hege-560 Firmware with a CVSS 3.x base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
CVSS v2: 4.6
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Huawei Hege-560 Firmware
Published: 2020-02-18
Last modified: 2026-06-17

Description

Huawei HEGE-560 version 1.0.1.20(SP2), OSCA-550 version 1.0.0.71(SP1), OSCA-550A version 1.0.0.71(SP1), OSCA-550AX version 1.0.0.71(SP2), and OSCA-550X version 1.0.0.71(SP2) have an insufficient verification vulnerability. An attacker can perform specific operations to exploit this vulnerability by physical access methods. Successful exploitation may cause the attacker perform an illegal operation.

Frequently asked questions

What is CVE-2020-1843?: Huawei HEGE-560 version 1.0.1.20(SP2), OSCA-550 version 1.0.0.71(SP1), OSCA-550A version 1.0.0.71(SP1), OSCA-550AX version 1.0.0.71(SP2), and OSCA-550X version 1.0.0.71(SP2) have an insufficient verification vulnerability. An attacker can perform specific operations to exploit this vulnerability by physical access methods. Successful exploitation may cause the attacker perform an illegal operation.
How severe is CVE-2020-1843?: CVE-2020-1843 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-1843 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-1843?: CVE-2020-1843 primarily affects Huawei Hege-560 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-1843?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-1843 published?: CVE-2020-1843 was published on 2020-02-18 and last updated on 2026-06-17.

References

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200122-02-osca-en

Affected products (5)

cpe:2.3:o:huawei:hege-560_firmware:1.0.1.20\(sp2\):*:*:*:*:*:*:*
cpe:2.3:o:huawei:osca-550_firmware:1.0.0.71\(sp1\):*:*:*:*:*:*:*
cpe:2.3:o:huawei:osca-550a_firmware:1.0.0.71\(sp1\):*:*:*:*:*:*:*
cpe:2.3:o:huawei:osca-550ax_firmware:1.0.0.71\(sp2\):*:*:*:*:*:*:*
cpe:2.3:o:huawei:osca-550x_firmware:1.0.0.71\(sp2\):*:*:*:*:*:*:*

More vulnerabilities in Huawei Hege-560 Firmware

CVE-2020-1842 — Medium (CVSS 6.8): Huawei HEGE-560 version 1.0.1.20(SP2); OSCA-550 and OSCA-550A version 1.0.0.71(SP1); and OSCA-550AX and OSCA-550X…
CVE-2020-1855 — Medium (CVSS 6.1): Huawei HEGE-570 version 1.0.1.22(SP3); and HEGE-560, OSCA-550, OSCA-550A, OSCA-550AX, and OSCA-550X version…
CVE-2020-1879 — Low (CVSS 3.9): There is an improper integrity checking vulnerability on some huawei products. The software of the affected product has…

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