How severe is CVE-2019-5961?

CVE-2019-5961 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2019-5961 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-5961?

CVE-2019-5961 affects Mastodon-tootdon Tootdon For Mastodon. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-5961?

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-2019-5961 published?

CVE-2019-5961 was published on 2019-07-05 and last updated on 2026-06-17.

CVE-2019-5961

CVE-2019-5961 is a high-severity vulnerability in Mastodon-tootdon Tootdon For Mastodon with a CVSS 3.x base score of 7.4. 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-295.

Key facts

Severity: High (CVSS 3.x base score 7.4)
CVSS v2: 5.8
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-295
Affected product: Mastodon-tootdon Tootdon For Mastodon
Published: 2019-07-05
Last modified: 2026-06-17

Description

The Android App 'Tootdon for Mastodon' version 3.4.1 and earlier does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Frequently asked questions

What is CVE-2019-5961?: The Android App 'Tootdon for Mastodon' version 3.4.1 and earlier does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.
How severe is CVE-2019-5961?: CVE-2019-5961 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2019-5961 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-5961?: CVE-2019-5961 affects Mastodon-tootdon Tootdon For Mastodon. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-5961?: 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-2019-5961 published?: CVE-2019-5961 was published on 2019-07-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mastodon-tootdon:tootdon_for_mastodon:*:*:*:*:*:android:*:*

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