Medium 4.3Published Jun 12, 2009

CVE-2009-2042libpng before 1.2.37 does not properly parse 1-bit interlaced images with width values that are not divisible by 8, which causes libpng to include uninitialized bits in certain rows of a PNG file and…

Updated under an hour ago (Nov 2, 2026, 12:23 AM ET)

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No exploitation reported and no EPSS estimate yet.

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libpng before 1.2.37 does not properly parse 1-bit interlaced images with width values that are not divisible by 8, which causes libpng to include uninitialized bits in certain rows of a PNG file and might allow remote attackers to read portions of sensitive memory via "out-of-bounds pixels" in the file.

CVSS: 4.3 MEDIUM (v2.0, NVD)AV:N/AC:M/Au:N/C:P/I:N/A:N
Weakness (CWE): CWE-200
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

libpng libpng libpng:libpng	through 1.2.35; 0.89c; 0.95; 1.0.0; 1.0.1; 1.0.2; 1.0.7; 1.0.7; and 193 more ranges	NVD

References

References

http://archives.neohapsis.com/archives/bugtraq/2010-04/0077.html
http://archives.neohapsis.com/archives/fulldisclosure/2010-04/0121.html
http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html
http://lists.vmware.com/pipermail/security-announce/2010/000090.html
http://secunia.com/advisories/35346	vendor-advisory
http://secunia.com/advisories/35470
http://secunia.com/advisories/35524
http://secunia.com/advisories/35594
http://secunia.com/advisories/39206
http://secunia.com/advisories/39215
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.