🛡️ CVE-2019-15554 — smallvec

🔴 CVSS 9.5 — Critical ✅ No Known Exploit CWE-787 OSV
9.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Memory corruption in smallvec

Attempting to call grow on a spilled SmallVec with a value less than the current capacity causes corruption of memory allocator data structures. An attacker that controls the value passed to grow may exploit this flaw to obtain memory contents or gain remote code execution.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2019-15554 is classified as CWE-787: Out-of-bounds Write. Data is written past the end or before the start of a buffer, corrupting whatever is stored there.

Affected software

CVE-2019-15554 is recorded against 1 package.

  • smallvec

Timeline and source

Published on 25 August 2021 and last revised on 8 November 2023. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Package)
rustsec.org (Web)

Details

Severity CRITICAL
CVSS Score 9.5
CVSS Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-787
Public Exploit ✅ No
Source OSV
Published 2021-08-25
Updated 2026-08-12
Modified 2023-11-08
Fix URL N/A

Affected Packages

Software From version Fixed in
smallvec — —

Similar Threats

Exploit Protection

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CVE-2019-15554 carries CVSS 9.5 Critical rating. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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