Is CVE-2023-27320 in the CISA KEV catalog?

No. CVE-2023-27320 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-27320?

CVE-2023-27320 has a CVSS v3 base score of 7.2 (HIGH).

What is the EPSS score for CVE-2023-27320?

CVE-2023-27320 has an EPSS score of 1.66% (74th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-27320?

Upgrade sudo on debian 12 to 1.9.13p3-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2023-27320

HIGHEPSS 74th pctl

7.2

CVSS v3

NVD

Description

Sudo before 1.9.13p2 has a double free in the per-command chroot feature.

CWE-415

How to fix

Remediation Available

sudoDebian

Fixed in:1.9.13p3-1CVE-2023-27320

sudoUbuntu

Fixed in:1.9.9-1ubuntu2.3USN-5908-1

Fixed in:1.9.11p3-1ubuntu1.2USN-5908-1

sudo-ldapUbuntu

Fixed in:1.9.9-1ubuntu2.3USN-5908-1

Fixed in:1.9.11p3-1ubuntu1.2USN-5908-1

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 RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.66%probability of exploitation in 30 days

74thpercentile

Elevated risk: more likely to be exploited than 74% of all known CVEs.

References

Exploit1

openwall.com

Third-Party Advisory3

Release Notes1

sudo.ws

Other references3

Related Vulnerabilities

Other CWE-415 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-25136	Medium	6.5	90%	-	Fix
CVE-2018-0101	Critical	10.0	87%	-	Fix
CVE-2003-0545	Critical	9.8	85%	-	Fix
CVE-2019-3829	Medium	5.3	59%	-	Fix
CVE-2026-33824	Critical	9.8	56%	-	Fix
CVE-2021-3407	Medium	5.5	50%	-	Fix

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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 2025-03-21.