How severe is CVE-2018-1000657?

CVE-2018-1000657 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-1000657 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-1000657?

CVE-2018-1000657 affects Rust-lang Rust. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-1000657?

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-2018-1000657 published?

CVE-2018-1000657 was published on 2018-08-20 and last updated on 2026-06-17.

CVE-2018-1000657

CVE-2018-1000657 is a high-severity vulnerability in Rust-lang Rust with a CVSS 3.x base score of 7.8. 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-119.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.6
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Rust-lang Rust
Published: 2018-08-20
Last modified: 2026-06-17

Description

Rust Programming Language Rust standard library version Commit bfa0e1f58acf1c28d500c34ed258f09ae021893e and later; stable release 1.3.0 and later contains a Buffer Overflow vulnerability in std::collections::vec_deque::VecDeque::reserve() function that can result in Arbitrary code execution, but no proof-of-concept exploit is currently published.. This vulnerability appears to have been fixed in after commit fdfafb510b1a38f727e920dccbeeb638d39a8e60; stable release 1.22.0 and later.

Frequently asked questions

What is CVE-2018-1000657?: Rust Programming Language Rust standard library version Commit bfa0e1f58acf1c28d500c34ed258f09ae021893e and later; stable release 1.3.0 and later contains a Buffer Overflow vulnerability in std::collections::vec_deque::VecDeque::reserve() function that can result in Arbitrary code execution, but no proof-of-concept exploit is currently published.. This vulnerability appears to have been fixed in after commit fdfafb510b1a38f727e920dccbeeb638d39a8e60; stable release 1.22.0 and later.
How severe is CVE-2018-1000657?: CVE-2018-1000657 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-1000657 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-1000657?: CVE-2018-1000657 affects Rust-lang Rust. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-1000657?: 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-2018-1000657 published?: CVE-2018-1000657 was published on 2018-08-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:rust-lang:rust:*:*:*:*:*:*:*:*

More vulnerabilities in Rust-lang Rust

CVE-2024-24576 — Critical (CVSS 10.0): Rust is a programming language. The Rust Security Response WG was notified that the Rust standard library prior to…
CVE-2024-3566 — Critical (CVSS 9.8): A command inject vulnerability allows an attacker to perform command injection on Windows applications that indirectly…
CVE-2021-31162 — Critical (CVSS 9.8): In the standard library in Rust before 1.52.0, a double free can occur in the Vec::from_iter function if freeing the…
CVE-2021-28879 — Critical (CVSS 9.8): In the standard library in Rust before 1.52.0, the Zip implementation can report an incorrect size due to an integer…
CVE-2020-36318 — Critical (CVSS 9.8): In the standard library in Rust before 1.49.0, VecDeque::make_contiguous has a bug that pops the same element more than…
CVE-2018-1000810 — Critical (CVSS 9.8): The Rust Programming Language Standard Library version 1.29.0, 1.28.0, 1.27.2, 1.27.1, 127.0, 126.2, 126.1, 126.0…

All CVEs affecting Rust-lang Rust →

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…
CVE-2026-2776 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability…
CVE-2025-1866 — Critical (CVSS 10.0): Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows…
CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2020-11896 — Critical (CVSS 10.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.

Browse all CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities →