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CVE-2018-1000657

27
FAUCET Score

CVE-2018-1000657 describes a buffer overflow vulnerability within the Rust standard library's VecDeque::reserve() function, affecting Rust versions 1.3.0 through 1.21.0. This flaw could lead to arbitrary code execution. With a CVSS score of 7.8 (High), the vulnerability is local, low complexity, and could result in high impact to confidentiality, integrity, and availability. While no public proof-of-concept exploits or active exploitation have been observed, the vulnerability has garnered some community discussion and media coverage, including an article on Hacker News.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.3.0, < 1.22.0CPE matchmatch criteria
cpe:2.3:a:rust-lang:rust:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.54%
Probability of exploitation in next 30 days
EPSS Percentile
42.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0054 is in the 82nd percentile among its peer group of 16,994 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2018-1000657Moderate

rust: Buffer Overflow vulnerability in std::collections::vec_deque::VecDeque::reserve() function

Aug 24, 2018

References

github.com / rust-lang/rust/commit/f71b37bc28326e272a37b938e835d4f99113eec2
PatchThird Party Advisory
github.com / rust-lang/rust/issues/44800
Issue TrackingThird Party Advisory
securityfocus.com / bid/105188
Third Party AdvisoryVDB Entry