CVE-2021-26305
CVSS v3
9.8
CRITICAL
EPSS Score
1.7 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
An issue was discovered in Deserializer::read_vec in the cdr crate before 0.2.4 for Rust. A user-provided Read implementation can gain access to the old contents of newly allocated heap memory, violating soundness.
Technical details
- Published
- 2021-01-29
Frequently asked questions
What is CVE-2021-26305?
An issue was discovered in Deserializer::read_vec in the cdr crate before 0.2.4 for Rust. A user-provided Read implementation can gain access to the old contents of newly allocated heap memory, violating soundness.
Is CVE-2021-26305 actively exploited?
Active exploitation of CVE-2021-26305 has not been confirmed. Its EPSS score was 1.7% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-26305?
CVE-2021-26305 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2021-26305 affecting your environment?
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