How severe is CVE-2020-27266?

CVE-2020-27266 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-27266 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-27266?

CVE-2020-27266 primarily affects Sooil Anydana-a Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-27266?

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

When was CVE-2020-27266 published?

CVE-2020-27266 was published on 2021-01-19 and last updated on 2026-06-17.

CVE-2020-27266

CVE-2020-27266 is a medium-severity vulnerability in Sooil Anydana-a Firmware with a CVSS 3.x base score of 6.5. 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 6.5)
CVSS v2: 3.3
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Sooil Anydana-a Firmware
Published: 2021-01-19
Last modified: 2026-06-17

Description

In SOOIL Developments Co., Ltd Diabecare RS, AnyDana-i and AnyDana-A, a client-side control vulnerability in the insulin pump and its AnyDana-i and AnyDana-A mobile applications allows physically proximate attackers to bypass user authentication checks via Bluetooth Low Energy.

Frequently asked questions

What is CVE-2020-27266?: In SOOIL Developments Co., Ltd Diabecare RS, AnyDana-i and AnyDana-A, a client-side control vulnerability in the insulin pump and its AnyDana-i and AnyDana-A mobile applications allows physically proximate attackers to bypass user authentication checks via Bluetooth Low Energy.
How severe is CVE-2020-27266?: CVE-2020-27266 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-27266 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-27266?: CVE-2020-27266 primarily affects Sooil Anydana-a Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-27266?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-27266 published?: CVE-2020-27266 was published on 2021-01-19 and last updated on 2026-06-17.

References

https://us-cert.cisa.gov/ics/advisories/icsma-21-012-01

Affected products (3)

cpe:2.3:o:sooil:anydana-a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:sooil:anydana-i_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:sooil:diabecare_rs_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Sooil Anydana-a Firmware

CVE-2020-27264 — High (CVSS 8.8): In SOOIL Developments Co., Ltd Diabecare RS, AnyDana-i and AnyDana-A, the communication protocol of the insulin pump…
CVE-2020-27256 — Medium (CVSS 6.8): In SOOIL Developments Co., Ltd Diabecare RS, AnyDana-i and AnyDana-A, a hard-coded physician PIN in the physician menu…
CVE-2020-27268 — Medium (CVSS 6.5): In SOOIL Developments Co., Ltd Diabecare RS, AnyDana-i and AnyDana-A, a client-side control vulnerability in the…
CVE-2020-27269 — Medium (CVSS 5.7): In SOOIL Developments Co., Ltd Diabecare RS, AnyDana-i and AnyDana-A, the communication protocol of the insulin pump…
CVE-2020-27276 — Medium (CVSS 5.7): SOOIL Developments Co Ltd DiabecareRS,AnyDana-i & AnyDana-A, the communication protocol of the insulin pump and its…
CVE-2020-27272 — Medium (CVSS 5.7): SOOIL Developments CoLtd DiabecareRS, AnyDana-i, AnyDana-A, The communication protocol of the insulin pump and…

All CVEs affecting Sooil Anydana-a Firmware →

Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →