Missing initialization of resource in Gerbv
Priority HIGH 67CWE-456Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
An information disclosure vulnerability exists in the pick-and-place rotation parsing functionality of Gerbv 2.7.0 and dev (commit b5f1eacd), and Gerbv forked 2.8.0. A specially-crafted pick-and-place file can exploit the missing initialization of a structure to leak memory contents. An attacker can provide a malicious file to trigger this vulnerability.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01084 65th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Gerbv | Gerbv 2.7.0 ,Gerbv forked 2.8.0 ,Gerbv dev (commit b5f1eacd) | — | No fix listed | CNA |
- Gerbv Vendor— Affected Gerbv 2.7.0 ,Gerbv forked 2.8.0 ,Gerbv dev (commit b5f1eacd) Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:gerbv_project:gerbv:2.7.0:-:*:*:*:*:*:* | 2.7.0 | Vulnerable | Gerbv |
| cpe:2.3:a:gerbv_project:gerbv:2.8.0:forked_dev:*:*:*:*:*:* | 2.8.0 forked_dev | Vulnerable | Gerbv |
| cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* | 36 | Vulnerable | Fedoraproject |
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 11.0 | Vulnerable | Debian |
- cpe:2.3:a:gerbv_project:gerbv:2.7.0:-:*:*:*:*:*:* Versions 2.7.0 Vulnerable ·Gerbv
- cpe:2.3:a:gerbv_project:gerbv:2.8.0:forked_dev:*:*:*:*:*:* Versions 2.8.0 forked_dev Vulnerable ·Gerbv
- cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* Versions 36 Vulnerable ·Fedoraproject
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2021-40403
- 2026-10-03 Alias added: GHSA-hmq5-vc89-4m9m
References
Sources
- CVE-2021-40403 · CVE Program
- CVE-2021-40403 · NVD
- FIRST EPSS
- GHSA-hmq5-vc89-4m9m · GitHub Advisory Database · CC BY 4.0
- CVE-2021-40403 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences