Is CVE-2017-11637 in the CISA KEV catalog?

No. CVE-2017-11637 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-11637?

CVE-2017-11637 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2017-11637?

CVE-2017-11637 has an EPSS score of 2.10% (79th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-11637?

Upgrade graphicsmagick on debian 11 to 1.3.26-4 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2017-11637

CRITICALEPSS 79th pctl

9.8

CVSS v3

NVD

Description

GraphicsMagick 1.3.26 has a NULL pointer dereference in the WritePCLImage() function in coders/pcl.c during writes of monochrome images.

CWE-476NULL Pointer Dereference

How to fix

Remediation Available

graphicsmagickDebian

Fixed in:1.3.26-4CVE-2017-11637

graphicsmagickUbuntu

Fixed in:1.3.23-1ubuntu0.2USN-4206-1

libgraphicsmagick++-q16-12Ubuntu

Fixed in:1.3.23-1ubuntu0.2USN-4206-1

libgraphicsmagick-q16-3Ubuntu

Fixed in:1.3.23-1ubuntu0.2USN-4206-1

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

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

2.10%probability of exploitation in 30 days

79thpercentile

Elevated risk: more likely to be exploited than 79% of all known CVEs.

References

Third-Party Advisory1

hg.code.sf.net

Other references3

Related Vulnerabilities

Other CWE-476 (NULL Pointer Dereference) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-21758	High	7.5	92%	-	Fix
CVE-2023-21547	High	7.5	88%	-	Fix
CVE-2014-3470	Medium	4.3	86%	-	Fix
CVE-2021-44224	High	8.2	82%	-	Fix
CVE-2016-0742	High	7.5	82%	-	Fix
CVE-2009-1386	Medium	5.0	80%	-	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 2026-05-13.