Medium 4.3Published Sep 10, 2008

CVE-2008-3964Multiple off-by-one errors in libpng before 1.2.32beta01, and 1.4 before 1.4.0beta34, allow context-dependent attackers to cause a denial of service (crash) or have unspecified other impact via a PNG…

Updated under an hour ago (Nov 2, 2026, 12:20 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Multiple off-by-one errors in libpng before 1.2.32beta01, and 1.4 before 1.4.0beta34, allow context-dependent attackers to cause a denial of service (crash) or have unspecified other impact via a PNG image with crafted zTXt chunks, related to (1) the png_push_read_zTXt function in pngread.c, and possibly related to (2) pngtest.c.

CVSS: 4.3 MEDIUM (v2.0, NVD)AV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness (CWE): CWE-193
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	before 1.2.32; 1.4.0; 1.4.0; 1.4.0; 1.4.0; 1.4.0; 1.4.0; 1.4.0; and 26 more ranges	NVD

References

References

http://secunia.com/advisories/31781	third-party-advisory
http://secunia.com/advisories/33137	third-party-advisory
http://secunia.com/advisories/35302	third-party-advisory
http://secunia.com/advisories/35386	third-party-advisory
http://security.gentoo.org/glsa/glsa-200812-15.xml	third-party-advisory
http://sourceforge.net/mailarchive/forum.php?thread_name=e56ccc8f0809180317u6a5306fg14683947affb3e1b%40mail.gmail.com&forum_name=png-mng-implement	third-party-advisory
http://sourceforge.net/project/shownotes.php?group_id=5624&release_id=624517	product, third-party-advisory
http://sourceforge.net/project/shownotes.php?release_id=624518	broken-link, patch
http://sourceforge.net/tracker/index.php?func=detail&aid=2095669&group_id=5624&atid=105624	exploit, third-party-advisory
http://sunsolve.sun.com/search/document.do?assetkey=1-66-259989-1	broken-link
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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.