Is CVE-2022-28805 in the CISA KEV catalog?

No. CVE-2022-28805 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-28805?

CVE-2022-28805 has a CVSS v3 base score of 9.1 (CRITICAL).

What is the EPSS score for CVE-2022-28805?

CVE-2022-28805 has an EPSS score of 2.92% (85th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-28805?

Upgrade lua on rhel 9 to 0:5.4.4-3.el9 or later. Fixes are available for 13 affected products.

CVE & CISA-KEV Catalog

CVE-2022-28805

CRITICALEPSS 85th pctl

9.1

CVSS v3

NVD

Description

singlevar in lparser.c in Lua from (including) 5.4.0 up to (excluding) 5.4.4 lacks a certain luaK_exp2anyregup call, leading to a heap-based buffer over-read that might affect a system that compiles untrusted Lua code.

CWE-125Out-of-bounds Read

How to fix

Remediation Available

luaRed Hat / RHEL

Fixed in:0:5.4.4-3.el9RHSA-2023:2582

luaRocky

Fixed in:0:5.4.4-3.el9RHSA-2023:2582

lua-debuginfoRocky

Fixed in:0:5.4.4-3.el9RHSA-2023:2582

lua-debuginfoRed Hat / RHEL

Fixed in:0:5.4.4-3.el9RHSA-2023:2582

lua-debugsourceRed Hat / RHEL

Fixed in:0:5.4.4-3.el9RHSA-2023:2582

lua-debugsourceRocky

Fixed in:0:5.4.4-3.el9RHSA-2023:2582

lua-develRocky

Fixed in:0:5.4.4-3.el9RHSA-2023:2582

lua-develRed Hat / RHEL

Fixed in:0:5.4.4-3.el9RHSA-2023:2582

lua-libsRed Hat / RHEL

Fixed in:0:5.4.4-3.el9RHSA-2023:2582

lua-libsRocky

Fixed in:0:5.4.4-3.el9RHSA-2023:2582

lua-libs-debuginfoRocky

Fixed in:0:5.4.4-3.el9RHSA-2023:2582

lua-libs-debuginfoRed Hat / RHEL

Fixed in:0:5.4.4-3.el9RHSA-2023:2582

lua5.4Ubuntu

Fixed in:5.4.4-1ubuntu0.1~esm1USN-6916-1

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 RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

2.92%probability of exploitation in 30 days

85thpercentile

Elevated risk: more likely to be exploited than 85% of all known CVEs.

References

Patch1

github.com

Exploit3

Third-Party Advisory3

Related Vulnerabilities

Other CWE-125 (Out-of-bounds Read) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0160	High	7.5	100%	KEV	Fix
CVE-2025-5777	High	7.5	100%	KEV + Ransom	Fix
CVE-2021-4034	High	7.8	95%	KEV	Fix
CVE-2023-21769	High	7.5	92%	-	Fix
CVE-2023-49285	High	8.6	89%	-	Fix
CVE-2020-8794	Critical	9.8	89%	-	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 2024-11-21.