CVE-2021-30456
CVE-2021-30456 is a critical-severity vulnerability in Id-map Project Id-map with a CVSS 3.x base score of 9.8. 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-415.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 1% (62nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-415
- Affected product: Id-map Project Id-map
- Published:
- Last modified:
Description
An issue was discovered in the id-map crate through 2021-02-26 for Rust. A double free can occur in get_or_insert upon a panic of a user-provided f function.
Frequently asked questions
- What is CVE-2021-30456?
- An issue was discovered in the id-map crate through 2021-02-26 for Rust. A double free can occur in get_or_insert upon a panic of a user-provided f function.
- How severe is CVE-2021-30456?
- CVE-2021-30456 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-30456 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-30456?
- CVE-2021-30456 affects Id-map Project Id-map. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-30456?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2021-30456 published?
- CVE-2021-30456 was published on 2021-04-07 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:id-map_project:id-map:*:*:*:*:*:rust:*:*
More vulnerabilities in Id-map Project Id-map
- CVE-2021-30457 — Critical (CVSS 9.8): An issue was discovered in the id-map crate through 2021-02-26 for Rust. A double free can occur in remove_set upon a…
- CVE-2021-30455 — Critical (CVSS 9.8): An issue was discovered in the id-map crate through 2021-02-26 for Rust. A double free can occur in IdMap::clone_from…
All CVEs affecting Id-map Project Id-map →
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