Is CVE-2022-48620 in the CISA KEV catalog?

No. CVE-2022-48620 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-48620?

CVE-2022-48620 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2022-48620?

CVE-2022-48620 has an EPSS score of 1.33% (68th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-48620?

Upgrade libuev on debian 11 to 2.3.1-1+deb11u1 or later.

CVE & CISA-KEV Catalog

CVE-2022-48620

CRITICAL

9.8

CVSS v3

NVD

Description

uev (aka libuev) before 2.4.1 has a buffer overflow in epoll_wait if maxevents is a large number.

CWE-120Classic Buffer Overflow

How to fix

Remediation Available

libuevDebian

Fixed in:2.3.1-1+deb11u1CVE-2022-48620

Fixed in:2.4.0-1.1+deb12u1CVE-2022-48620

Fixed in:2.4.1-1CVE-2022-48620

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

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.33%probability of exploitation in 30 days

68thpercentile

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

References

Patch1

github.com

Issue Tracking1

github.com

Release Notes1

github.com

Other references7

Related Vulnerabilities

Other CWE-120 (Classic Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0195	Medium	6.8	100%	-	Fix
CVE-2017-7269	Critical	9.8	100%	KEV	-
CVE-2019-11043	High	8.7	99%	KEV + Ransom	Fix
CVE-2011-4862	High	10.0	95%	-	Fix
CVE-2007-5659	High	7.8	94%	KEV	Fix
CVE-2022-3786	High	7.5	91%	-	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 2026-01-25.