Is CVE-2018-11237 in the CISA KEV catalog?

No. CVE-2018-11237 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-11237?

CVE-2018-11237 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2018-11237?

CVE-2018-11237 has an EPSS score of 0.86% (54th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-11237?

Upgrade glibc on debian 11 to 2.27-4 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2018-11237

HIGH

7.8

CVSS v3

NVD

Description

An AVX-512-optimized implementation of the mempcpy function in the GNU C Library (aka glibc or libc6) 2.27 and earlier may write data beyond the target buffer, leading to a buffer overflow in __mempcpy_avx512_no_vzeroupper.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

glibcDebian

Fixed in:2.27-4CVE-2018-11237

glibcUbuntu

Fixed in:2.23-0ubuntu11.2USN-4416-1

Fixed in:2.27-3ubuntu1.2USN-4416-1

libc6Ubuntu

Fixed in:2.23-0ubuntu11.2USN-4416-1

Fixed in:2.27-3ubuntu1.2USN-4416-1

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 VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.86%probability of exploitation in 30 days

54thpercentile

Moderate risk: more likely to be exploited than 54% of all known CVEs.

References

Patch2

Third-Party Advisory5

Other references2

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	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.