How severe is CVE-2016-7520?

CVE-2016-7520 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2016-7520 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-2016-7520?

CVE-2016-7520 affects Imagemagick. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-7520?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2016-7520 published?

CVE-2016-7520 was published on 2017-04-20 and last updated on 2026-06-17.

CVE-2016-7520

CVE-2016-7520 is a medium-severity vulnerability in Imagemagick with a CVSS 3.x base score of 6.5. 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-125.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Imagemagick
Published: 2017-04-20
Last modified: 2026-06-17

Description

Heap-based buffer overflow in coders/hdr.c in ImageMagick allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted HDR file.

Frequently asked questions

What is CVE-2016-7520?: Heap-based buffer overflow in coders/hdr.c in ImageMagick allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted HDR file.
How severe is CVE-2016-7520?: CVE-2016-7520 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2016-7520 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-2016-7520?: CVE-2016-7520 affects Imagemagick. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-7520?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-7520 published?: CVE-2016-7520 was published on 2017-04-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*

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