Buffer Overflow Affecting libpng package, versions [,1.6.47)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CONAN-LIBPNG-15119981
- published27 Jan 2026
- disclosed27 Jan 2026
- creditkaiyu xie
Introduced: 27 Jan 2026
CVE-2025-28164 (opens in a new tab)How to fix?
Upgrade libpng to version 1.6.47 or higher.
Overview
Affected versions of this package are vulnerable to Buffer Overflow via the read_png() function. An attacker can cause a crash or potentially execute arbitrary code by providing damaged PNG file to this function.
Note:
As mentioned by the package maintainer, the flawed logic wasn't introduced only in version 1.6.43, it was always present and 1.6.43 is the version the reporter used for fuzz testing.
PoC
While running pngimage tests with AddressSanitizer (ASan), memory leaks were detected in read_png() during calls to png_create_read_struct() and png_create_info_struct(). The leaked memory is allocated in png_malloc_base() but never freed.