CVE-2007-2445

The png_handle_tRNS function in pngrutil.c in libpng before 1.0.25 and 1.2.x before 1.2.17 allows remote attackers to cause a denial of service (application crash) via a grayscale PNG image with a bad tRNS chunk CRC value.

Published: 2007-05-16 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2007-2445 is rated Moderate Risk (46.9/100): CVSS Medium severity, with high exploitation likelihood (EPSS 5.07%, 91th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2007-2445

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 38.75% 5.07% -33.67%
2 2026-06-08 38.26% 38.75% +0.48%
3 2026-01-02 — 38.26% —

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2007-2445

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2007-2445

OS Trackers for CVE-2007-2445

vendor priority summary link
debian low CVE-2007-2445 low priority: Debian including 1 source packages (libgd2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2007-2445
gentoo normal CVE-2007-2445: 2 GLSA(s) (200705-24, 201412-11), 2 atom(s) (app-emulation/emul-linux-x86-baselibs, media-libs/libpng); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2007-2445
redhat medium — https://access.redhat.com/security/cve/CVE-2007-2445
ubuntu medium CVE-2007-2445 medium priority: Ubuntu including 1 source packages (libpng), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): released 3, needs-triage 1. https://ubuntu.com/security/CVE-2007-2445

Affected software / configurations for CVE-2007-2445

Vendor Product Version Raw CPE
png_reference_library libpng <= 1.0.15 cpe:2.3:a:png_reference_library:libpng:*:*:*:*:*:*:*:*
png_reference_library libpng <= 1.2.16 cpe:2.3:a:png_reference_library:libpng:*:*:*:*:*:*:*:*

References for CVE-2007-2445

URL Tags
http://android-developers.blogspot.com/2008/03/android-sdk-update-m5-rc15-released.html
http://docs.info.apple.com/article.html?artnum=307562
http://irrlicht.sourceforge.net/changes.txt
http://lists.apple.com/archives/security-announce/2008/Mar/msg00001.html
http://openpkg.com/go/OpenPKG-SA-2007.013
http://osvdb.org/36196
http://secunia.com/advisories/25268 Vendor Advisory
http://secunia.com/advisories/25273 Vendor Advisory
http://secunia.com/advisories/25292 Vendor Advisory
http://secunia.com/advisories/25329 Vendor Advisory
http://secunia.com/advisories/25353
http://secunia.com/advisories/25461
http://secunia.com/advisories/25554
http://secunia.com/advisories/25571
http://secunia.com/advisories/25742
http://secunia.com/advisories/25787
http://secunia.com/advisories/25867
http://secunia.com/advisories/27056
http://secunia.com/advisories/29420
http://secunia.com/advisories/30161
http://secunia.com/advisories/31168
http://secunia.com/advisories/34388
http://slackware.com/security/viewer.php?l=slackware-security&y=2007&m=slackware-security.492650
http://sourceforge.net/project/shownotes.php?release_id=508653&group_id=5624 Patch
http://sourceforge.net/project/shownotes.php?release_id=508656&group_id=5624 Patch
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102987-1
http://sunsolve.sun.com/search/document.do?assetkey=1-66-200871-1
http://support.avaya.com/elmodocs2/security/ASA-2007-254.htm
http://www.coresecurity.com/?action=item&id=2148
http://www.debian.org/security/2008/dsa-1613
http://www.debian.org/security/2009/dsa-1750
http://www.gentoo.org/security/en/glsa/glsa-200705-24.xml
http://www.gentoo.org/security/en/glsa/glsa-200805-07.xml
http://www.kb.cert.org/vuls/id/684664 Third Party Advisory US Government Resource
http://www.mandriva.com/security/advisories?name=MDKSA-2007:116
http://www.mirrorservice.org/sites/download.sourceforge.net/pub/sourceforge/l/li/libpng/libpng-1.2.17-ADVISORY.txt Vendor Advisory
http://www.novell.com/linux/security/advisories/2007_13_sr.html
http://www.redhat.com/support/errata/RHSA-2007-0356.html
http://www.securityfocus.com/archive/1/468910/100/0/threaded
http://www.securityfocus.com/archive/1/489135/100/0/threaded
http://www.securityfocus.com/bid/24000
http://www.securityfocus.com/bid/24023
http://www.securitytracker.com/id?1018078
http://www.trustix.org/errata/2007/0019/
http://www.ubuntu.com/usn/usn-472-1
http://www.vupen.com/english/advisories/2007/1838
http://www.vupen.com/english/advisories/2007/2385
http://www.vupen.com/english/advisories/2008/0924/references
https://exchange.xforce.ibmcloud.com/vulnerabilities/34340
https://issues.rpath.com/browse/RPL-1381
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10094
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