How severe is CVE-2020-28248?

CVE-2020-28248 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-2020-28248 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-28248?

CVE-2020-28248 affects Png-img Project Png-img. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-28248?

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-2020-28248 published?

CVE-2020-28248 was published on 2021-02-20 and last updated on 2026-06-17.

CVE-2020-28248

CVE-2020-28248 is a high-severity vulnerability in Png-img Project Png-img 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-190.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-190
Affected product: Png-img Project Png-img
Published: 2021-02-20
Last modified: 2026-06-17

Description

An integer overflow in the PngImg::InitStorage_() function of png-img before 3.1.0 leads to an under-allocation of heap memory and subsequently an exploitable heap-based buffer overflow when loading a crafted PNG file.

Frequently asked questions

What is CVE-2020-28248?: An integer overflow in the PngImg::InitStorage_() function of png-img before 3.1.0 leads to an under-allocation of heap memory and subsequently an exploitable heap-based buffer overflow when loading a crafted PNG file.
How severe is CVE-2020-28248?: CVE-2020-28248 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-2020-28248 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-28248?: CVE-2020-28248 affects Png-img Project Png-img. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-28248?: 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-2020-28248 published?: CVE-2020-28248 was published on 2021-02-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:png-img_project:png-img:*:*:*:*:*:*:*:*

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