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CVE-2021-26951

CRITICAL
9.8
CVSS Score
Published: February 9, 2021 at 10:07 PM UTC
Updated: June 17, 2026 at 03:44 AM UTC
1 product affected across 1 vendorCalamine

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Severity
CRITICAL9.8
Exploit prediction
EPSS 2%

Description

An issue was discovered in the calamine crate before 0.17.0 for Rust. It allows attackers to overwrite heap-memory locations because Vec::set_len is used without proper memory claiming, and this uninitialized memory is used for a user-provided Read operation, as demonstrated by Sectors::get.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Calamine· Calamine Projectcargo
95%
v < 0.17.0
Affected range stops below 0.17.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCExploitVendor Advisory
Source: [email protected]
https://rustsec.org/advisories/RUSTSEC-2021-0015.html

CVSS

9.8CRITICAL[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-787CWE-908

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