CVE-2021-40391
9.8
CRITICAL · CVSS 3.1 · EPSS 3% (pctl 87)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
An out-of-bounds write vulnerability exists in the drill format T-code tool number functionality of Gerbv 2.7.0, dev (commit b5f1eacd), and the forked version of Gerbv (commit 71493260). A specially-crafted drill file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 2.99% — more likely to be exploited than 87% of all CVEs |
| Weakness | CWE-390 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2021-11-19 |
| Last modified | 2026-06-17 |
Affected (3)
| Vendor | Product |
|---|---|
| debian | debian linux |
| fedoraproject | fedora |
| gerbv project | gerbv |
References
- https://lists.debian.org/debian-lts-announce/2021/12/msg00003.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TUM5GIUZJ7AVHVCXDZW6ZVCAPV2ISN47/
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1402
- https://lists.debian.org/debian-lts-announce/2021/12/msg00003.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TUM5GIUZJ7AVHVCXDZW6ZVCAPV2ISN47/
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1402
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