CVE-2021-45686 json
Use of Uninitialized Resource in csv-sniffer.
published 2021-01-05 5 y ago modified 2026-06-17 4 mo ago also GHSA-9783-42pm-x5jq , GHSA-r67p-m7g9-gxw6 , RUSTSEC-2021-0088 , EUVD-2022-0542
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 69%
- public exploits
- 0
- none known
Summary
An issue was discovered in the csv-sniffer crate through 2021-01-05 for Rust. preamble_skipcount may read from uninitialized memory locations.
Patch / fix
Exploit prediction
1.23% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| crates.io | csv-sniffer | <0.2.0 >=0.0.0-0, <0.2.0 |
0.2.0 |
Classification
- Weakness
-
- CWE-908 Use of Uninitialized Resource
References
-
github.com
/jblondin/csv-sniffer/pull/2
web
-
rustsec.org
/advisories/RUSTSEC-2021-0088.html
web, third-party-advisory, advisory
-
raw.githubusercontent.com
/rustsec/advisory-db/main/crates/csv-sniffer/RUSTSEC-2021-0088.md
web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-45686
advisory
-
github.com
/jblondin/csv-sniffer/issues/1
web, report
-
github.com
/jblondin/csv-sniffer
package
-
crates.io
/crates/csv-sniffer
package
Sources
- CVE List CVE-2021-45686
- GitHub Advisory GHSA-9783-42pm-x5jq
- GitHub Advisory GHSA-r67p-m7g9-gxw6
- NVD CVE-2021-45686
- OSV RUSTSEC-2021-0088
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.