Is CVE-2021-40400 in the CISA KEV catalog?

No. CVE-2021-40400 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-40400?

CVE-2021-40400 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2021-40400?

CVE-2021-40400 has an EPSS score of 1.36% (68th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-40400?

Upgrade gerbv on debian 12 to 2.9.2-1 or later.

CVE & CISA-KEV Catalog

CVE-2021-40400

HIGH

7.5

CVSS v3

NVD

Description

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.

CWE-119Buffer Overflow CWE-125Out-of-bounds Read

How to fix

Remediation Available

gerbvDebian

Fixed in:2.9.2-1CVE-2021-40400

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

1.36%probability of exploitation in 30 days

68thpercentile

Moderate risk: more likely to be exploited than 68% of all known CVEs.

References

Exploit1

talosintelligence.com

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-4966	Critical	9.4	100%	KEV + Ransom	Fix
CVE-2017-11882	High	7.8	100%	KEV + Ransom	-
CVE-2020-0796	Critical	10.0	100%	KEV + Ransom	-
CVE-2008-4250	Critical	9.8	99%	KEV	-
CVE-2017-15944	Critical	9.8	98%	KEV	Fix
CVE-2015-0014	High	10.0	97%	-	-

Embed a live status badge for CVE-2021-40400

Markdown

[![CVE-2021-40400](https://tridentstack.com/cve/badge/CVE-2021-40400.svg)](https://tridentstack.com/cve/CVE-2021-40400)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-40400"><img src="https://tridentstack.com/cve/badge/CVE-2021-40400.svg" alt="CVE-2021-40400"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.