How severe is CVE-2019-1265?

CVE-2019-1265 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 none, integrity high, and availability none.

Is CVE-2019-1265 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-1265?

CVE-2019-1265 affects Microsoft Yammer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-1265?

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-2019-1265 published?

CVE-2019-1265 was published on 2019-09-11 and last updated on 2026-06-17.

CVE-2019-1265

CVE-2019-1265 is a high-severity vulnerability in Microsoft Yammer 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.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Yammer
Published: 2019-09-11
Last modified: 2026-06-17

Description

A security feature bypass vulnerability exists when Microsoft Yammer App for Android fails to apply the correct Intune MAM Policy.This could allow an attacker to perform functions that are restricted by Intune Policy.The security update addresses the vulnerability by correcting the way the policy is applied to Yammer App., aka 'Microsoft Yammer Security Feature Bypass Vulnerability'.

Frequently asked questions

What is CVE-2019-1265?: A security feature bypass vulnerability exists when Microsoft Yammer App for Android fails to apply the correct Intune MAM Policy.This could allow an attacker to perform functions that are restricted by Intune Policy.The security update addresses the vulnerability by correcting the way the policy is applied to Yammer App., aka 'Microsoft Yammer Security Feature Bypass Vulnerability'.
How severe is CVE-2019-1265?: CVE-2019-1265 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 none, integrity high, and availability none.
Is CVE-2019-1265 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-1265?: CVE-2019-1265 affects Microsoft Yammer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-1265?: 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-2019-1265 published?: CVE-2019-1265 was published on 2019-09-11 and last updated on 2026-06-17.

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1265

Affected products (1)

cpe:2.3:a:microsoft:yammer:*:*:*:*:*:android:*:*

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