How severe is CVE-2019-15553?

CVE-2019-15553 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 high, integrity none, and availability none.

Is CVE-2019-15553 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-15553?

CVE-2019-15553 affects Memoffset Project Memoffset. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-15553?

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-2019-15553 published?

CVE-2019-15553 was published on 2019-08-26 and last updated on 2026-06-17.

CVE-2019-15553

CVE-2019-15553 is a high-severity vulnerability in Memoffset Project Memoffset 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-908.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-908
Affected product: Memoffset Project Memoffset
Published: 2019-08-26
Last modified: 2026-06-17

Description

An issue was discovered in the memoffset crate before 0.5.0 for Rust. offset_of and span_of can cause exposure of uninitialized memory.

Frequently asked questions

What is CVE-2019-15553?: An issue was discovered in the memoffset crate before 0.5.0 for Rust. offset_of and span_of can cause exposure of uninitialized memory.
How severe is CVE-2019-15553?: CVE-2019-15553 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 high, integrity none, and availability none.
Is CVE-2019-15553 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-15553?: CVE-2019-15553 affects Memoffset Project Memoffset. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-15553?: 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-2019-15553 published?: CVE-2019-15553 was published on 2019-08-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:memoffset_project:memoffset:*:*:*:*:*:*:*:*

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