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CVE-2008-3964

17
FAUCET Score

CVE-2008-3964 describes multiple off-by-one errors in libpng versions prior to 1.2.32beta01 and 1.4.0beta34. These flaws, specifically within the png_push_read_zTXt function, can be triggered by a crafted PNG image containing malicious zTXt chunks. The vulnerability has a CVSS score of 4.3 (Medium), indicating a network-based attack with medium complexity that can lead to a denial of service (crash) or other unspecified impacts. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.2.32CPE matchmatch criteria
cpe:2.3:a:libpng:libpng:*:*:*:*:*:*:*:*
1.4.0CPE matchmatch criteria
cpe:2.3:a:libpng:libpng:1.4.0:beta1:*:*:*:*:*:*
1.4.0CPE matchmatch criteria
cpe:2.3:a:libpng:libpng:1.4.0:beta10:*:*:*:*:*:*
1.4.0CPE matchmatch criteria
cpe:2.3:a:libpng:libpng:1.4.0:beta11:*:*:*:*:*:*
1.4.0CPE matchmatch criteria
cpe:2.3:a:libpng:libpng:1.4.0:beta12:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.34%
Probability of exploitation in next 30 days
EPSS Percentile
87.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0334 is in the 82nd percentile among its peer group of 19,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2008-3964Moderate

libpng: off-by-one error in png_push_read_zTXt()

Sep 5, 2008

References

secunia.com / advisories/31781
Third Party Advisory
secunia.com / advisories/33137
Third Party Advisory
secunia.com / advisories/35302
Third Party Advisory
secunia.com / advisories/35386
Third Party Advisory
security.gentoo.org / glsa/glsa-200812-15.xml
Third Party Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/44928
Third Party AdvisoryVDB Entry
sourceforge.net / mailarchive/forum.php
Third Party Advisory
sourceforge.net / project/shownotes.php
ProductThird Party Advisory
sourceforge.net / project/shownotes.php
Broken LinkPatch
sourceforge.net / tracker/index.php
ExploitThird Party Advisory
sunsolve.sun.com / search/document.do
Broken Link
sunsolve.sun.com / search/document.do
Broken Link
support.avaya.com / elmodocs2/security/ASA-2009-208.htm
Third Party Advisory
kb.cert.org / vuls/id/889484
Third Party AdvisoryUS Government Resource
mandriva.com / security/advisories
Broken Link
openwall.com / lists/oss-security/2008/09/09/3
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2008/09/09/8
Mailing ListThird Party Advisory
securityfocus.com / bid/31049
Third Party AdvisoryVDB Entry
vupen.com / english/advisories/2008/2512
Permissions Required
vupen.com / english/advisories/2009/1462
Permissions Required
vupen.com / english/advisories/2009/1560
Permissions Required