How severe is CVE-2017-11636?

CVE-2017-11636 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-11636 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-11636?

CVE-2017-11636 affects Graphicsmagick. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-11636?

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

When was CVE-2017-11636 published?

CVE-2017-11636 was published on 2017-07-26 and last updated on 2026-06-17.

CVE-2017-11636

CVE-2017-11636 is a critical-severity vulnerability in Graphicsmagick with a CVSS 3.x base score of 9.8. 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-119.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Graphicsmagick
Published: 2017-07-26
Last modified: 2026-06-17

Description

GraphicsMagick 1.3.26 has a heap overflow in the WriteRGBImage() function in coders/rgb.c when processing multiple frames that have non-identical widths.

Frequently asked questions

What is CVE-2017-11636?: GraphicsMagick 1.3.26 has a heap overflow in the WriteRGBImage() function in coders/rgb.c when processing multiple frames that have non-identical widths.
How severe is CVE-2017-11636?: CVE-2017-11636 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-11636 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-11636?: CVE-2017-11636 affects Graphicsmagick. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-11636?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2017-11636 published?: CVE-2017-11636 was published on 2017-07-26 and last updated on 2026-06-17.

References

Affected products (1)

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

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