How severe is CVE-2017-18220?

CVE-2017-18220 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-18220 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-18220?

CVE-2017-18220 affects Graphicsmagick. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-18220?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2017-18220 published?

CVE-2017-18220 was published on 2018-03-05 and last updated on 2026-06-17.

CVE-2017-18220

CVE-2017-18220 is a high-severity vulnerability in Graphicsmagick with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-416.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-416
Affected product: Graphicsmagick
Published: 2018-03-05
Last modified: 2026-06-17

Description

The ReadOneJNGImage and ReadJNGImage functions in coders/png.c in GraphicsMagick 1.3.26 allow remote attackers to cause a denial of service (magick/blob.c CloseBlob use-after-free) or possibly have unspecified other impact via a crafted file, a related issue to CVE-2017-11403.

Frequently asked questions

What is CVE-2017-18220?: The ReadOneJNGImage and ReadJNGImage functions in coders/png.c in GraphicsMagick 1.3.26 allow remote attackers to cause a denial of service (magick/blob.c CloseBlob use-after-free) or possibly have unspecified other impact via a crafted file, a related issue to CVE-2017-11403.
How severe is CVE-2017-18220?: CVE-2017-18220 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-18220 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-18220?: CVE-2017-18220 affects Graphicsmagick. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-18220?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2017-18220 published?: CVE-2017-18220 was published on 2018-03-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:graphicsmagick:graphicsmagick:1.3.26:*:*:*:*:*:*:*

More vulnerabilities in Graphicsmagick

CVE-2008-6071 — Critical (CVSS 10.0): Heap-based buffer overflow in the DecodeImage function in coders/pict.c in GraphicsMagick before 1.1.14, and 1.2.x…
CVE-2020-10938 — Critical (CVSS 9.8): GraphicsMagick before 1.3.35 has an integer overflow and resultant heap-based buffer overflow in HuffmanDecodeImage in…
CVE-2019-19951 — Critical (CVSS 9.8): In GraphicsMagick 1.4 snapshot-20190423 Q8, there is a heap-based buffer overflow in the function ImportRLEPixels of…
CVE-2019-19950 — Critical (CVSS 9.8): In GraphicsMagick 1.4 snapshot-20190403 Q8, there is a use-after-free in ThrowException and ThrowLoggedException of…
CVE-2019-11005 — Critical (CVSS 9.8): In GraphicsMagick 1.4 snapshot-20190322 Q8, there is a stack-based buffer overflow in the function SVGStartElement of…
CVE-2017-11643 — Critical (CVSS 9.8): GraphicsMagick 1.3.26 has a heap overflow in the WriteCMYKImage() function in coders/cmyk.c when processing multiple…

All CVEs affecting Graphicsmagick →

Other CWE-416 (Use After Free) vulnerabilities

CVE-2026-13782 — Critical (CVSS 10.0): Use after free in Browser in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the…
CVE-2026-4725 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149…
CVE-2026-4688 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox…
CVE-2025-24085 — Critical (CVSS 10.0): A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.3 and iPadOS 18.3,…
CVE-2024-43102 — Critical (CVSS 10.0): Concurrent removals of certain anonymous shared memory mappings by using the UMTX_SHM_DESTROY sub-request of…
CVE-2021-32495 — Critical (CVSS 10.0): Radare2 has a use-after-free vulnerability in pyc parser's get_none_object function. Attacker can read freed memory…

Browse all CWE-416 (Use After Free) vulnerabilities →