CVE-2023-38538

CVE-2023-38538 is a medium-severity vulnerability in Whatsapp with a CVSS 3.x base score of 5.0. 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-362.

Key facts

Description

A race condition in an event subsystem led to a heap use-after-free issue in established audio/video calls that could have resulted in app termination or unexpected control flow with very low probability.

Frequently asked questions

What is CVE-2023-38538?
A race condition in an event subsystem led to a heap use-after-free issue in established audio/video calls that could have resulted in app termination or unexpected control flow with very low probability.
How severe is CVE-2023-38538?
CVE-2023-38538 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2023-38538 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-38538?
CVE-2023-38538 affects Whatsapp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-38538?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-38538 published?
CVE-2023-38538 was published on 2023-10-04 and last updated on 2026-06-17.

References

Affected products (1)

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