How severe is CVE-2020-1837?

CVE-2020-1837 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-1837 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-1837?

CVE-2020-1837 affects Huawei Changxiang 8 Plus Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-1837?

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

When was CVE-2020-1837 published?

CVE-2020-1837 was published on 2020-07-06 and last updated on 2026-06-17.

CVE-2020-1837

CVE-2020-1837 is a medium-severity vulnerability in Huawei Changxiang 8 Plus Firmware with a CVSS 3.x base score of 5.3. 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 5.3)
CVSS v2: 2.9
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Huawei Changxiang 8 Plus Firmware
Published: 2020-07-06
Last modified: 2026-06-17

Description

ChangXiang 8 Plus with versions earlier than 9.1.0.136(C00E121R1P6T8) have a denial of service vulnerability. The device does not properly handle certain message from base station, the attacker could craft a fake base station to launch the attack. Successful exploit could cause a denial of signal service condition.

Frequently asked questions

What is CVE-2020-1837?: ChangXiang 8 Plus with versions earlier than 9.1.0.136(C00E121R1P6T8) have a denial of service vulnerability. The device does not properly handle certain message from base station, the attacker could craft a fake base station to launch the attack. Successful exploit could cause a denial of signal service condition.
How severe is CVE-2020-1837?: CVE-2020-1837 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-1837 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-1837?: CVE-2020-1837 affects Huawei Changxiang 8 Plus Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-1837?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-1837 published?: CVE-2020-1837 was published on 2020-07-06 and last updated on 2026-06-17.

References

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200624-01-dos-en

Affected products (1)

cpe:2.3:o:huawei:changxiang_8_plus_firmware:*:*:*:*:*:*:*:*

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