CVE-2022-4899

CVE-2022-4899 is a high-severity vulnerability in Facebook Zstandard 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-400.

Key facts

Description

A vulnerability was found in zstd v1.4.10, where an attacker can supply empty string as an argument to the command line tool to cause buffer overrun.

Frequently asked questions

What is CVE-2022-4899?
A vulnerability was found in zstd v1.4.10, where an attacker can supply empty string as an argument to the command line tool to cause buffer overrun.
How severe is CVE-2022-4899?
CVE-2022-4899 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 none, and availability high.
Is CVE-2022-4899 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-4899?
CVE-2022-4899 affects Facebook Zstandard. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-4899?
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-2022-4899 published?
CVE-2022-4899 was published on 2023-03-31 and last updated on 2026-06-17.

References

Affected products (1)

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