CVE-2020-28248
Integer Overflow in png-img
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2020-28248- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-190, CWE-787
- Updated
- 2026-11-02
CVE ListNo score
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.
- Record
CVE-2020-28248- Updated
- 2026-11-02
EUVDEUVD-2021-2566No score
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.
- Record
EUVD-2021-2566- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-q5wr-fvpq-p67g
Integer Overflow in png-img
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.
- Record
GHSA-q5wr-fvpq-p67g- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-190, CWE-787
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2020-28248- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-q5wr-fvpq-p67g
Integer Overflow in png-img
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.
- Record
GHSA-q5wr-fvpq-p67g- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-190, CWE-787
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
png-imgnpm | before 3.1.0 | 3.1.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-28248 is a high vulnerability (CVSS 8.8) in Png-img Project Png-img, published February 19, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.22%, the 82nd percentile. Fixed in png-img 3.1.0.
References
github.com/gemini-testing/png-img
securitylab.github.com/advisories/GHSL-2020-142-gemini-png-img
nvd.nist.gov/vuln/detail/CVE-2020-28248