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Vulnerability record · CVE-2019-12083 · published 13 May 2019

CVE-2019-12083: Rust-lang rust out-of-bounds read vulnerability

Rust Lang · Rust

The Rust Programming Language Standard Library 1.34.x before 1.34.2 contains a stabilized method which, if overridden, can violate Rust's safety guarantees and cause memory unsafety. If the `Error::type_id` method is overridden then any type can be safely cast to any other type, causing memory safety vulnerabilities in safe code (e.g., out-of-bounds write or read). Code that does not manually implement Error::type_id is unaffected.

8.1 CVSS 3.1 High EPSS 2.2% · top 18.0% CWE-125 · Out-of-bounds readCWE-787 · Out-of-bounds write
8.1CVSS 3.1 base score, v2 6.8
2.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
14References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

The Rust Programming Language Standard Library 1.34.x before 1.34.2 contains a stabilized method which, if overridden, can violate Rust's safety guarantees and cause memory unsafety. If the `Error::type_id` method is overridden then any type can be safely cast to any other type, causing memory safety vulnerabilities in safe code (e.g., out-of-bounds write or read). Code that does not manually implement Error::type_id is unaffected.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00076.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00006.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00031.html Mailing ListThird Party Advisory
https://blog.rust-lang.org/2019/05/13/Security-advisory.html ExploitMitigationVendor Advisory
https://groups.google.com/forum/#%21topic/rustlang-security-announcements/aZabeCMUv70
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HG47HYH3AQTUMBUMX3S3G5D
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K6T4BNA5KQYJRIKIGGBOGBM
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00076.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00006.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00031.html Mailing ListThird Party Advisory
https://blog.rust-lang.org/2019/05/13/Security-advisory.html ExploitMitigationVendor Advisory
https://groups.google.com/forum/#%21topic/rustlang-security-announcements/aZabeCMUv70
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HG47HYH3AQTUMBUMX3S3G5D
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K6T4BNA5KQYJRIKIGGBOGBM

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Source: NIST National Vulnerability Database (record CVE-2019-12083), CISA KEV, FIRST EPSS (scores of 2026-10-03). This page is refreshed as NVD updates the record.