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TI-2021-17464 Aliases CVE-2021-40400GHSA-6c2w-p226-q9q8

Memory corruption in Gerbv

Priority HIGH 72CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.

Summary

An out-of-bounds read vulnerability exists in the RS-274X aperture macro outline primitive functionality of Gerbv 2.7.0 and dev (commit b5f1eacd) and the forked version of Gerbv (commit d7f42a9a). A specially-crafted Gerber file can lead to information disclosure. 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 0.01288 70th 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

VendorProductAffected versionsFixed inStatusSource
GerbvGerbv2.7.0; dev (commit b5f1eacd)—No fix listedCNA
GerbvGerbv forkeddev (commit d7f42a9a)—No fix listedCNA
  • Gerbv VendorGerbv Affected 2.7.0; dev (commit b5f1eacd) Fixed in — No fix listed CNA
  • Gerbv forked VendorGerbv Affected dev (commit d7f42a9a) Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:gerbv_project:gerbv:2.7.0:-:*:*:*:*:*:*2.7.0VulnerableGerbv
cpe:2.3:a:gerbv_project:gerbv:2.7.0:dev:*:*:*:*:*:*2.7.0 devVulnerableGerbv
  • cpe:2.3:a:gerbv_project:gerbv:2.7.0:-:*:*:*:*:*:* Versions 2.7.0 Vulnerable ·Gerbv
  • cpe:2.3:a:gerbv_project:gerbv:2.7.0:dev:*:*:*:*:*:* Versions 2.7.0 dev Vulnerable ·Gerbv

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-40400
  2. 2026-10-03 Alias added: GHSA-6c2w-p226-q9q8

References

Exploit 1

  • TI-2021-17465 A use-after-free vulnerability exists in the RS-274X aperture definition tokenization… CVSS 3.1HIGH 8.6
  • TI-2021-17466 Improper handling of exceptional conditions in Gerbv CVSS 3.1HIGH 7.5
  • TI-2021-17467 Missing initialization of resource in Gerbv CVSS 3.1MEDIUM 6.3
  • TI-2021-17458 Memory corruption in Gerbv CVSS 3.1CRITICAL 9.8
  • TI-2021-17459 Out-of-bounds write in Gerbv CVSS 3.1CRITICAL 9.8
  • TI-2021-17456 Improper handling of exceptional conditions in Gerbv CVSS 3.1CRITICAL 9.8
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences