How severe is CVE-2023-22895?

CVE-2023-22895 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-2023-22895 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-22895?

CVE-2023-22895 affects Bzip2 Project Bzip2. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-22895?

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-2023-22895 published?

CVE-2023-22895 was published on 2023-01-10 and last updated on 2026-06-17.

CVE-2023-22895

CVE-2023-22895 is a high-severity vulnerability in Bzip2 Project Bzip2 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-190.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-190
Affected product: Bzip2 Project Bzip2
Published: 2023-01-10
Last modified: 2026-06-17

Description

The bzip2 crate before 0.4.4 for Rust allow attackers to cause a denial of service via a large file that triggers an integer overflow in mem.rs. NOTE: this is unrelated to the https://crates.io/crates/bzip2-rs product.

Frequently asked questions

What is CVE-2023-22895?: The bzip2 crate before 0.4.4 for Rust allow attackers to cause a denial of service via a large file that triggers an integer overflow in mem.rs. NOTE: this is unrelated to the https://crates.io/crates/bzip2-rs product.
How severe is CVE-2023-22895?: CVE-2023-22895 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-2023-22895 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-22895?: CVE-2023-22895 affects Bzip2 Project Bzip2. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-22895?: 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-2023-22895 published?: CVE-2023-22895 was published on 2023-01-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:bzip2_project:bzip2:*:*:*:*:*:rust:*:*

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