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CWE-416

7,270 CVEs • Abstraction: Variant • Likelihood of Exploit: High

Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

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CVEs (7,270)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
4Apple
CanonicalGoogle+1 more
5Chrome
Iphone OsSafari+2 more
Apr 29, 2026
Sep 7, 2010
N/A· v4
N/A· v3
9.3 HIGH· v2
Use-after-free vulnerability in WebKit, as used in Apple Safari before 4.1.3 and 5.0.x before 5.0.3, Google Chrome before 6.0.472.53, and webkitgtk before 1.2.6, allows remote attackers to execute arbitrary code or cause...Show more
Use-after-free vulnerability in WebKit, as used in Apple Safari before 4.1.3 and 5.0.x before 5.0.3, Google Chrome before 6.0.472.53, and webkitgtk before 1.2.6, allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via vectors involving element focus.Show less
1Google
1Chrome
Apr 29, 2026
Sep 7, 2010
N/A· v4
N/A· v3
10.0 HIGH· v2
Use-after-free vulnerability in the Notifications presenter in Google Chrome before 6.0.472.53 allows attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.
4Apple
CanonicalGoogle+1 more
5Chrome
Iphone OsSafari+2 more
Apr 29, 2026
Aug 24, 2010
N/A· v4
N/A· v3
10.0 HIGH· v2
Multiple use-after-free vulnerabilities in WebKit, as used in Apple Safari before 4.1.3 and 5.0.x before 5.0.3, Google Chrome before 5.0.375.127, and webkitgtk before 1.2.6, allow remote attackers to execute arbitrary co...Show more
Multiple use-after-free vulnerabilities in WebKit, as used in Apple Safari before 4.1.3 and 5.0.x before 5.0.3, Google Chrome before 5.0.375.127, and webkitgtk before 1.2.6, allow remote attackers to execute arbitrary code or cause a denial of service (application crash) via vectors related to improper handling of MIME types by plug-ins.Show less
3Debian
FedoraprojectGnupg
3Debian Linux
FedoraGnupg
Apr 29, 2026
Aug 5, 2010
N/A· v4
8.1 HIGH· v3
5.1 MEDIUM· v2
Use-after-free vulnerability in kbx/keybox-blob.c in GPGSM in GnuPG 2.x through 2.0.16 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a certificate with a large numbe...Show more
Use-after-free vulnerability in kbx/keybox-blob.c in GPGSM in GnuPG 2.x through 2.0.16 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a certificate with a large number of Subject Alternate Names, which is not properly handled in a realloc operation when importing the certificate or verifying its signature.Show less
3Mozilla
OpensuseSuse
7Firefox
Linux Enterprise DesktopLinux Enterprise Server+4 more
Apr 29, 2026
Jul 30, 2010
N/A· v4
8.8 HIGH· v3
9.3 HIGH· v2
Integer overflow in Mozilla Firefox 3.5.x before 3.5.11 and 3.6.x before 3.6.7, Thunderbird 3.0.x before 3.0.6 and 3.1.x before 3.1.1, and SeaMonkey before 2.0.6 allows remote attackers to execute arbitrary code via a la...Show more
Integer overflow in Mozilla Firefox 3.5.x before 3.5.11 and 3.6.x before 3.6.7, Thunderbird 3.0.x before 3.0.6 and 3.1.x before 3.1.1, and SeaMonkey before 2.0.6 allows remote attackers to execute arbitrary code via a large selection attribute in a XUL tree element, which triggers a use-after-free.Show less
1Mozilla
2Firefox
Seamonkey
Apr 29, 2026
Jul 30, 2010
N/A· v4
8.8 HIGH· v3
9.3 HIGH· v2
Use-after-free vulnerability in the attribute-cloning functionality in the DOM implementation in Mozilla Firefox 3.5.x before 3.5.11 and 3.6.x before 3.6.7, and SeaMonkey before 2.0.6, allows remote attackers to execute...Show more
Use-after-free vulnerability in the attribute-cloning functionality in the DOM implementation in Mozilla Firefox 3.5.x before 3.5.11 and 3.6.x before 3.6.7, and SeaMonkey before 2.0.6, allows remote attackers to execute arbitrary code via vectors related to deletion of an event attribute node with a nonzero reference count.Show less
3Google
OpensuseSuse
4Chrome
OpensuseSuse Linux Enterprise Desktop+1 more
Apr 29, 2026
Jun 15, 2010
N/A· v4
N/A· v3
10.0 HIGH· v2
Use-after-free vulnerability in WebCore in WebKit in Google Chrome before 5.0.375.70 allows remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via vectors involving remot...Show more
Use-after-free vulnerability in WebCore in WebKit in Google Chrome before 5.0.375.70 allows remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via vectors involving remote fonts in conjunction with shadow DOM trees, aka rdar problem 8007953. NOTE: this might overlap CVE-2010-1771.Show less
1Google
1Chrome
Apr 29, 2026
Jun 15, 2010
N/A· v4
N/A· v3
10.0 HIGH· v2
Use-after-free vulnerability in the Element::normalizeAttributes function in dom/Element.cpp in WebCore in WebKit in Google Chrome before 5.0.375.70 allows remote attackers to execute arbitrary code or cause a denial of...Show more
Use-after-free vulnerability in the Element::normalizeAttributes function in dom/Element.cpp in WebCore in WebKit in Google Chrome before 5.0.375.70 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via vectors related to handlers for DOM mutation events, aka rdar problem 7948784. NOTE: this might overlap CVE-2010-1759.Show less
4Debian
LinuxOpensuse+1 more
6Debian Linux
Linux Enterprise DesktopLinux Enterprise High Availability Extension+3 more
Apr 29, 2026
May 7, 2010
N/A· v4
7.0 HIGH· v3
4.4 MEDIUM· v2
Race condition in the find_keyring_by_name function in security/keys/keyring.c in the Linux kernel 2.6.34-rc5 and earlier allows local users to cause a denial of service (memory corruption and system crash) or possibly h...Show more
Race condition in the find_keyring_by_name function in security/keys/keyring.c in the Linux kernel 2.6.34-rc5 and earlier allows local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact via keyctl session commands that trigger access to a dead keyring that is undergoing deletion by the key_cleanup function.Show less
5Canonical
FedoraprojectMit+2 more
5Fedora
Kerberos 5Linux Enterprise+2 more
Apr 29, 2026
Apr 7, 2010
N/A· v4
6.5 MEDIUM· v3
4.0 MEDIUM· v2
Use-after-free vulnerability in kadmin/server/server_stubs.c in kadmind in MIT Kerberos 5 (aka krb5) 1.5 through 1.6.3 allows remote authenticated users to cause a denial of service (daemon crash) via a request from a ka...Show more
Use-after-free vulnerability in kadmin/server/server_stubs.c in kadmind in MIT Kerberos 5 (aka krb5) 1.5 through 1.6.3 allows remote authenticated users to cause a denial of service (daemon crash) via a request from a kadmin client that sends an invalid API version number.Show less
4Apple
CanonicalFedoraproject+1 more
5Fedora
Iphone OsOpensuse+2 more
Apr 29, 2026
Mar 15, 2010
N/A· v4
8.8 HIGH· v3
9.3 HIGH· v2
Use-after-free vulnerability in WebKit in Apple Safari before 4.0.5 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via an HTML document with improperly nested tags.
1Microsoft
7Internet Explorer
Windows 2000Windows 2003 Server+4 more
May 21, 2026
Mar 10, 2010
N/A· v4
8.8 HIGH· v3
9.3 HIGH· v2
Use-after-free vulnerability in the Peer Objects component (aka iepeers.dll) in Microsoft Internet Explorer 6, 6 SP1, and 7 allows remote attackers to execute arbitrary code via vectors involving access to an invalid poi...Show more
Use-after-free vulnerability in the Peer Objects component (aka iepeers.dll) in Microsoft Internet Explorer 6, 6 SP1, and 7 allows remote attackers to execute arbitrary code via vectors involving access to an invalid pointer after the deletion of an object, as exploited in the wild in March 2010, aka "Uninitialized Memory Corruption Vulnerability."Show less
4Apple
CanonicalFedoraproject+1 more
10Cups
Enterprise LinuxEnterprise Linux Desktop+7 more
Apr 29, 2026
Mar 5, 2010
N/A· v4
7.5 HIGH· v3
4.3 MEDIUM· v2
Use-after-free vulnerability in the abstract file-descriptor handling interface in the cupsdDoSelect function in scheduler/select.c in the scheduler in cupsd in CUPS before 1.4.4, when kqueue or epoll is used, allows rem...Show more
Use-after-free vulnerability in the abstract file-descriptor handling interface in the cupsdDoSelect function in scheduler/select.c in the scheduler in cupsd in CUPS before 1.4.4, when kqueue or epoll is used, allows remote attackers to cause a denial of service (daemon crash or hang) via a client disconnection during listing of a large number of print jobs, related to improperly maintaining a reference count. NOTE: some of these details are obtained from third party information. NOTE: this vulnerability exists because of an incomplete fix for CVE-2009-3553.Show less
1Microsoft
1Internet Explorer
Apr 29, 2026
Jan 22, 2010
N/A· v4
8.1 HIGH· v3
9.3 HIGH· v2
Microsoft Internet Explorer 6, 6 SP1, 7, and 8 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that (1) was not properly initialized or (2) is de...Show more
Microsoft Internet Explorer 6, 6 SP1, 7, and 8 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that (1) was not properly initialized or (2) is deleted, leading to memory corruption, aka "HTML Object Memory Corruption Vulnerability."Show less
1Adobe
1Flash Player
Apr 29, 2026
Jan 21, 2010
N/A· v4
8.8 HIGH· v3
9.3 HIGH· v2
Use-after-free vulnerability in Adobe Flash Player 6.0.79, as distributed in Microsoft Windows XP SP2 and SP3, allows remote attackers to execute arbitrary code by unloading a Flash object that is currently being accesse...Show more
Use-after-free vulnerability in Adobe Flash Player 6.0.79, as distributed in Microsoft Windows XP SP2 and SP3, allows remote attackers to execute arbitrary code by unloading a Flash object that is currently being accessed by a script, leading to memory corruption, aka a "Movie Unloading Vulnerability."Show less
1Microsoft
1Internet Explorer
May 21, 2026
Jan 15, 2010
N/A· v4
8.8 HIGH· v3
9.3 HIGH· v2
Use-after-free vulnerability in Microsoft Internet Explorer 6, 6 SP1, 7, and 8 on Windows 2000 SP4; Windows XP SP2 and SP3; Windows Server 2003 SP2; Windows Vista Gold, SP1, and SP2; Windows Server 2008 Gold, SP2, and R2...Show more
Use-after-free vulnerability in Microsoft Internet Explorer 6, 6 SP1, 7, and 8 on Windows 2000 SP4; Windows XP SP2 and SP3; Windows Server 2003 SP2; Windows Vista Gold, SP1, and SP2; Windows Server 2008 Gold, SP2, and R2; and Windows 7 allows remote attackers to execute arbitrary code by accessing a pointer associated with a deleted object, related to incorrectly initialized memory and improper handling of objects in memory, as exploited in the wild in December 2009 and January 2010 during Operation Aurora, aka "HTML Object Memory Corruption Vulnerability."Show less
3Adobe
OpensuseSuse
5Acrobat
Acrobat ReaderLinux Enterprise+2 more
Apr 21, 2026
Dec 15, 2009
N/A· v4
7.8 HIGH· v3
9.3 HIGH· v2
Use-after-free vulnerability in the Doc.media.newPlayer method in Multimedia.api in Adobe Reader and Acrobat 9.x before 9.3, and 8.x before 8.2 on Windows and Mac OS X, allows remote attackers to execute arbitrary code v...Show more
Use-after-free vulnerability in the Doc.media.newPlayer method in Multimedia.api in Adobe Reader and Acrobat 9.x before 9.3, and 8.x before 8.2 on Windows and Mac OS X, allows remote attackers to execute arbitrary code via a crafted PDF file using ZLib compressed streams, as exploited in the wild in December 2009.Show less
1Microsoft
7Internet Explorer
Windows 2000Windows 7+4 more
Apr 23, 2026
Dec 9, 2009
N/A· v4
8.1 HIGH· v3
9.3 HIGH· v2
Microsoft Internet Explorer 8 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that (1) was not properly initialized or (2) is deleted, leading to...Show more
Microsoft Internet Explorer 8 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that (1) was not properly initialized or (2) is deleted, leading to memory corruption, aka "Uninitialized Memory Corruption Vulnerability," a different vulnerability than CVE-2009-3674.Show less
5Apple
CanonicalDebian+2 more
7Cups
Debian LinuxEnterprise Linux+4 more
Apr 23, 2026
Nov 20, 2009
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
Use-after-free vulnerability in the abstract file-descriptor handling interface in the cupsdDoSelect function in scheduler/select.c in the scheduler in cupsd in CUPS 1.3.7 and 1.3.10 allows remote attackers to cause a de...Show more
Use-after-free vulnerability in the abstract file-descriptor handling interface in the cupsdDoSelect function in scheduler/select.c in the scheduler in cupsd in CUPS 1.3.7 and 1.3.10 allows remote attackers to cause a denial of service (daemon crash or hang) via a client disconnection during listing of a large number of print jobs, related to improperly maintaining a reference count. NOTE: some of these details are obtained from third party information.Show less
2Qemu
Redhat
3Enterprise Linux Server
Enterprise Linux WorkstationQemu
Apr 23, 2026
Oct 23, 2009
N/A· v4
9.9 CRITICAL· v3
8.5 HIGH· v2
Multiple use-after-free vulnerabilities in vnc.c in the VNC server in QEMU 0.10.6 and earlier might allow guest OS users to execute arbitrary code on the host OS by establishing a connection from a VNC client and then (1...Show more
Multiple use-after-free vulnerabilities in vnc.c in the VNC server in QEMU 0.10.6 and earlier might allow guest OS users to execute arbitrary code on the host OS by establishing a connection from a VNC client and then (1) disconnecting during data transfer, (2) sending a message using incorrect integer data types, or (3) using the Fuzzy Screen Mode protocol, related to double free vulnerabilities.Show less