How severe is CVE-2020-11826?

CVE-2020-11826 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-11826 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-11826?

CVE-2020-11826 affects Appinghouse Memono. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-11826?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-11826 published?

CVE-2020-11826 was published on 2020-04-16 and last updated on 2026-06-17.

CVE-2020-11826

CVE-2020-11826 is a high-severity vulnerability in Appinghouse Memono with a CVSS 3.x base score of 7.5. 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-312.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (39th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-312
Affected product: Appinghouse Memono
Published: 2020-04-16
Last modified: 2026-06-17

Description

Users can lock their notes with a password in Memono version 3.8. Thus, users needs to know a password to read notes. However, these notes are stored in a database without encryption and an attacker can read the password-protected notes without having the password. Notes are stored in the ZENTITY table in the memono.sqlite database.

Frequently asked questions

What is CVE-2020-11826?: Users can lock their notes with a password in Memono version 3.8. Thus, users needs to know a password to read notes. However, these notes are stored in a database without encryption and an attacker can read the password-protected notes without having the password. Notes are stored in the ZENTITY table in the memono.sqlite database.
How severe is CVE-2020-11826?: CVE-2020-11826 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-11826 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-11826?: CVE-2020-11826 affects Appinghouse Memono. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-11826?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-11826 published?: CVE-2020-11826 was published on 2020-04-16 and last updated on 2026-06-17.

References

https://fatihhcelik.blogspot.com/2020/02/memono-insecure-data-storage-ios.html

Affected products (1)

cpe:2.3:a:appinghouse:memono:3.8:*:*:*:*:iphone_os:*:*

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