CVE-2021-28306 json
Null pointer deference in fltk
published 2021-03-06 5 y ago modified 2026-06-17 4 mo ago also CVE-2021-28307 , CVE-2021-28308 , GHSA-5pg8-h4gv-m3p8 , GHSA-7qcc-g2m9-8533 , GHSA-vjmg-pc8h-p6p8 , RUSTSEC-2021-0038 , EUVD-2021-1577
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 66%
- public exploits
- 0
- none known
Summary
An issue was discovered in the fltk crate before 0.15.3 for Rust. There is a NULL pointer dereference during attempted use of a multi label type if the image is nonexistent.
Patch / fix
- crates.io fltk 0.15.3
- fltk_project fltk 0.15.3
Exploit prediction
1.13% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| GitHub | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| crates.io | fltk | <0.15.3 >=0.0.0-0, <0.15.3 |
0.15.3 |
Classification
References
-
rustsec.org
/advisories/RUSTSEC-2021-0038.html
web, third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-28307
advisory
-
github.com
/MoAlyousef/fltk-rs/issues/519
web, report
-
github.com
/MoAlyousef/fltk-rs
package
-
nvd.nist.gov
/vuln/detail/CVE-2021-28306
advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-28308
advisory
-
crates.io
/crates/fltk
package
Sources
- CVE List CVE-2021-28306
- GitHub Advisory GHSA-7qcc-g2m9-8533
- GitHub Advisory GHSA-5pg8-h4gv-m3p8
- GitHub Advisory GHSA-vjmg-pc8h-p6p8
- NVD CVE-2021-28306
- OSV RUSTSEC-2021-0038
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.