Linux · 
Ubuntu · Package update · February 10, 2026
Ubuntu · Package update · February 10, 2026libpng16-16 1.6.34-1ubuntu0.18.04.2+esm2: libpng16-16 1.6.34-1ubuntu0.18.04.2+esm2 for Ubuntu 18.04.6 LTS (bionic)
libpng16-16 1.6.34-1ubuntu0.18.04.2+esm2, released February 10, 2026, fixes 4 CVEs in libpng16-16. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.
HighUnsupported product
CVEs closed
4
None rated Critical
Exploited
0
None reported
Highest CVSS
8.1
Base score, 0 to 10
Highest EPSS
0.0112
66th percentile
Priority of the 4 CVEs
Patch now 0
Urgent 0
High 4
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| libpng16-16 | Ubuntu 18.04.6 LTS (bionic) | 1.6.34-1ubuntu0.18.04.2+esm2 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2026-25646 | libpng12: heap buffer overflow vulnerability in png_set_dither/png_set_quantize (bsc#1258020). | 8.1 | 0.0112 | None reported |
| High | CVE-2025-66293 | LIBPNG has an out-of-bounds read in png_image_read_composite | 7.1 | 0.0038 | None reported |
| High | CVE-2026-22695 | LIBPNG has a heap buffer over-read in png_image_read_direct_scaled (regression from CVE-2025-65018 fix) | 7.1 | 0.0022 | None reported |
| High | CVE-2026-22801 | LIBPNG has an integer truncation causing heap buffer over-read in png_image_write_* | 7.8 | 0.0013 | None reported |
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