How severe is CVE-2020-1803?

CVE-2020-1803 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 high, integrity none, and availability none.

Is CVE-2020-1803 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-1803?

CVE-2020-1803 affects Huawei Honor V20 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-1803?

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

When was CVE-2020-1803 published?

CVE-2020-1803 was published on 2020-04-20 and last updated on 2026-06-17.

CVE-2020-1803

CVE-2020-1803 is a medium-severity vulnerability in Huawei Honor V20 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. The underlying weakness is classified as CWE-287.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 2.9
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Huawei Honor V20 Firmware
Published: 2020-04-20
Last modified: 2026-06-17

Description

Huawei smartphones Honor V20 with versions earlier than 10.0.0.179(C636E3R4P3),versions earlier than 10.0.0.180(C185E3R3P3),versions earlier than 10.0.0.180(C432E10R3P4) have an information disclosure vulnerability. The device does not sufficiently validate the identity of smart wearable device in certain specific scenario, the attacker need to gain certain information in the victim's smartphone to launch the attack, successful exploit could cause information disclosure.

Frequently asked questions

What is CVE-2020-1803?: Huawei smartphones Honor V20 with versions earlier than 10.0.0.179(C636E3R4P3),versions earlier than 10.0.0.180(C185E3R3P3),versions earlier than 10.0.0.180(C432E10R3P4) have an information disclosure vulnerability. The device does not sufficiently validate the identity of smart wearable device in certain specific scenario, the attacker need to gain certain information in the victim's smartphone to launch the attack, successful exploit could cause information disclosure.
How severe is CVE-2020-1803?: CVE-2020-1803 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 high, integrity none, and availability none.
Is CVE-2020-1803 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-1803?: CVE-2020-1803 affects Huawei Honor V20 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-1803?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-1803 published?: CVE-2020-1803 was published on 2020-04-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:huawei:honor_v20_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Huawei Honor V20 Firmware

CVE-2019-5228 — High (CVSS 7.8): Certain detection module of P30, P30 Pro, Honor V20 smartphone whith Versions earlier than ELLE-AL00B…
CVE-2020-9244 — Medium (CVSS 6.8): HUAWEI Mate 20 versions Versions earlier than 10.1.0.160(C00E160R3P8);HUAWEI Mate 20 Pro versions Versions earlier than…
CVE-2019-5303 — Medium (CVSS 5.3): There are two denial of service vulnerabilities on some Huawei smartphones. An attacker may send specially crafted…
CVE-2019-5302 — Medium (CVSS 5.3): There are two denial of service vulnerabilities on some Huawei smartphones. An attacker may send specially crafted…
CVE-2019-5301 — Low (CVSS 3.3): Huawei smart phones Honor V20 with the versions before 9.0.1.161(C00E161R2P2) have an information leak vulnerability.…

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Other CWE-287 (Improper Authentication) vulnerabilities

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CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
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