CVE-2026-56361
CVE-2026-56361 is a low-severity vulnerability in Imagemagick with a CVSS 3.x base score of 3.3. 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: Low (CVSS 3.x base score 3.3)
- CVSS v4: 4.8
- EPSS exploit prediction: 0% (3rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-125
- Affected product: Imagemagick
- Published:
- Last modified:
Description
ImageMagick before 7.1.2-19 contains an off-by-one error in morphology validation allowing out-of-bounds heap buffer reads. Attackers can trigger heap buffer overflow by providing incorrect morphology parameters causing single pixel memory access violations.
Frequently asked questions
- What is CVE-2026-56361?
- ImageMagick before 7.1.2-19 contains an off-by-one error in morphology validation allowing out-of-bounds heap buffer reads. Attackers can trigger heap buffer overflow by providing incorrect morphology parameters causing single pixel memory access violations.
- How severe is CVE-2026-56361?
- CVE-2026-56361 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.
- Is CVE-2026-56361 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-56361?
- CVE-2026-56361 affects Imagemagick. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-56361?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2026-56361 published?
- CVE-2026-56361 was published on 2026-06-30 and last updated on 2026-07-02.
References
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-q8h3-jv9v-57qx
- https://www.vulncheck.com/advisories/imagemagick-heap-buffer-overflow-via-off-by-one-in-morphology-processing
Affected products (1)
- cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*
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