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CWE-416

8,553 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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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 (8,553)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
5Canonical
DebianMozilla+2 more
12Debian Linux
Enterprise Linux AusEnterprise Linux Desktop+9 more
Apr 29, 2026
Feb 19, 2013
N/A· v4
N/A· v3
9.3 HIGH· v2
Use-after-free vulnerability in the nsImageLoadingContent::OnStopContainer function in Mozilla Firefox before 19.0, Firefox ESR 17.x before 17.0.3, Thunderbird before 17.0.3, Thunderbird ESR 17.x before 17.0.3, and SeaMo...Show more
Use-after-free vulnerability in the nsImageLoadingContent::OnStopContainer function in Mozilla Firefox before 19.0, Firefox ESR 17.x before 17.0.3, Thunderbird before 17.0.3, Thunderbird ESR 17.x before 17.0.3, and SeaMonkey before 2.16 allows remote attackers to execute arbitrary code via crafted web script.Show less
1Microsoft
1Internet Explorer
Apr 29, 2026
Feb 13, 2013
N/A· v4
9.0 CRITICAL· v3
9.3 HIGH· v2
Use-after-free vulnerability in Microsoft Internet Explorer 9 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to a deleted object, aka "Internet Explorer LsGetTrailInfo Use A...Show more
Use-after-free vulnerability in Microsoft Internet Explorer 9 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to a deleted object, aka "Internet Explorer LsGetTrailInfo Use After Free Vulnerability."Show less
5Canonical
FedoraprojectOpensuse+2 more
11Enterprise Linux Desktop
Enterprise Linux EusEnterprise Linux Server+8 more
Apr 29, 2026
Feb 8, 2013
N/A· v4
N/A· v3
6.8 MEDIUM· v2
Use-after-free vulnerability in the virNetMessageFree function in rpc/virnetserverclient.c in libvirt 1.0.x before 1.0.2, 0.10.2 before 0.10.2.3, 0.9.11 before 0.9.11.9, and 0.9.6 before 0.9.6.4 allows remote attackers t...Show more
Use-after-free vulnerability in the virNetMessageFree function in rpc/virnetserverclient.c in libvirt 1.0.x before 1.0.2, 0.10.2 before 0.10.2.3, 0.9.11 before 0.9.11.9, and 0.9.6 before 0.9.6.4 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code by triggering certain errors during an RPC connection, which causes a message to be freed without being removed from the message queue.Show less
2Google
Opensuse
2Chrome
Opensuse
Apr 29, 2026
Jan 15, 2013
N/A· v4
N/A· v3
7.5 HIGH· v2
Use-after-free vulnerability in Google Chrome before 24.0.1312.52 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to SVG layout.
5Canonical
MozillaOpensuse+2 more
14Enterprise Linux Desktop
Enterprise Linux EusEnterprise Linux Server+11 more
Apr 29, 2026
Jan 13, 2013
N/A· v4
N/A· v3
9.3 HIGH· v2
Use-after-free vulnerability in the ~nsHTMLEditRules implementation in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.1, Thunderbird before 17.0.2, Thunderbird ESR 10.x before 10.0.12 a...Show more
Use-after-free vulnerability in the ~nsHTMLEditRules implementation in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.1, Thunderbird before 17.0.2, Thunderbird ESR 10.x before 10.0.12 and 17.x before 17.0.1, and SeaMonkey before 2.15 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors.Show less
5Canonical
MozillaOpensuse+2 more
14Enterprise Linux Desktop
Enterprise Linux EusEnterprise Linux Server+11 more
Apr 29, 2026
Jan 13, 2013
N/A· v4
N/A· v3
9.3 HIGH· v2
Use-after-free vulnerability in Mozilla Firefox before 18.0, Firefox ESR 17.x before 17.0.1, Thunderbird before 17.0.2, Thunderbird ESR 17.x before 17.0.1, and SeaMonkey before 2.15 allows remote attackers to execute arb...Show more
Use-after-free vulnerability in Mozilla Firefox before 18.0, Firefox ESR 17.x before 17.0.1, Thunderbird before 17.0.2, Thunderbird ESR 17.x before 17.0.1, and SeaMonkey before 2.15 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via vectors related to Mesa drivers and a resized WebGL canvas.Show less
5Canonical
MozillaOpensuse+2 more
14Enterprise Linux Desktop
Enterprise Linux EusEnterprise Linux Server+11 more
Apr 29, 2026
Jan 13, 2013
N/A· v4
N/A· v3
9.3 HIGH· v2
Use-after-free vulnerability in the imgRequest::OnStopFrame function in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.1, Thunderbird before 17.0.2, Thunderbird ESR 10.x before 10.0.12...Show more
Use-after-free vulnerability in the imgRequest::OnStopFrame function in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.1, Thunderbird before 17.0.2, Thunderbird ESR 10.x before 10.0.12 and 17.x before 17.0.1, and SeaMonkey before 2.15 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors.Show less
4Canonical
MozillaOpensuse+1 more
9Firefox
Linux Enterprise DesktopLinux Enterprise Server+6 more
Apr 29, 2026
Jan 13, 2013
N/A· v4
N/A· v3
9.3 HIGH· v2
Use-after-free vulnerability in the mozilla::TrackUnionStream::EndTrack implementation in Mozilla Firefox before 18.0, Firefox ESR 17.x before 17.0.1, Thunderbird before 17.0.2, Thunderbird ESR 17.x before 17.0.1, and Se...Show more
Use-after-free vulnerability in the mozilla::TrackUnionStream::EndTrack implementation in Mozilla Firefox before 18.0, Firefox ESR 17.x before 17.0.1, Thunderbird before 17.0.2, Thunderbird ESR 17.x before 17.0.1, and SeaMonkey before 2.15 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors.Show less
4Canonical
MozillaOpensuse+1 more
9Firefox
Linux Enterprise DesktopLinux Enterprise Server+6 more
Apr 29, 2026
Jan 13, 2013
N/A· v4
N/A· v3
9.3 HIGH· v2
Use-after-free vulnerability in the obj_toSource function in Mozilla Firefox before 18.0, Firefox ESR 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderbird ESR 17.x before 17.0.2, and SeaMonkey before 2.15 allows re...Show more
Use-after-free vulnerability in the obj_toSource function in Mozilla Firefox before 18.0, Firefox ESR 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderbird ESR 17.x before 17.0.2, and SeaMonkey before 2.15 allows remote attackers to execute arbitrary code via a crafted web page referencing JavaScript Proxy objects that are not properly handled during garbage collection.Show less
4Canonical
MozillaOpensuse+1 more
9Firefox
Linux Enterprise DesktopLinux Enterprise Server+6 more
Apr 29, 2026
Jan 13, 2013
N/A· v4
N/A· v3
9.3 HIGH· v2
Use-after-free vulnerability in the mozVibrate implementation in the Vibrate library in Mozilla Firefox before 18.0, Firefox ESR 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderbird ESR 17.x before 17.0.2, and SeaM...Show more
Use-after-free vulnerability in the mozVibrate implementation in the Vibrate library in Mozilla Firefox before 18.0, Firefox ESR 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderbird ESR 17.x before 17.0.2, and SeaMonkey before 2.15 allows remote attackers to execute arbitrary code via vectors related to the domDoc pointer.Show less
5Canonical
MozillaOpensuse+2 more
14Enterprise Linux Desktop
Enterprise Linux EusEnterprise Linux Server+11 more
Apr 29, 2026
Jan 13, 2013
N/A· v4
N/A· v3
9.3 HIGH· v2
Use-after-free vulnerability in the ListenerManager implementation in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderbird ESR 10.x before 10.0.12 an...Show more
Use-after-free vulnerability in the ListenerManager implementation in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderbird ESR 10.x before 10.0.12 and 17.x before 17.0.2, and SeaMonkey before 2.15 allows remote attackers to execute arbitrary code via vectors involving the triggering of garbage collection after memory allocation for listener objects.Show less
5Canonical
MozillaOpensuse+2 more
14Enterprise Linux Desktop
Enterprise Linux EusEnterprise Linux Server+11 more
Apr 29, 2026
Jan 13, 2013
N/A· v4
N/A· v3
9.3 HIGH· v2
Use-after-free vulnerability in the serializeToStream implementation in the XMLSerializer component in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.2, Thunderbird before 17.0.2, Thund...Show more
Use-after-free vulnerability in the serializeToStream implementation in the XMLSerializer component in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderbird ESR 10.x before 10.0.12 and 17.x before 17.0.2, and SeaMonkey before 2.15 allows remote attackers to execute arbitrary code via crafted web content.Show less
5Canonical
MozillaOpensuse+2 more
14Enterprise Linux Desktop
Enterprise Linux EusEnterprise Linux Server+11 more
Apr 29, 2026
Jan 13, 2013
N/A· v4
N/A· v3
9.3 HIGH· v2
Use-after-free vulnerability in the TableBackgroundPainter::TableBackgroundData::Destroy function in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.2, Thunderbird before 17.0.2, Thunder...Show more
Use-after-free vulnerability in the TableBackgroundPainter::TableBackgroundData::Destroy function in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderbird ESR 10.x before 10.0.12 and 17.x before 17.0.2, and SeaMonkey before 2.15 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via an HTML document with a table containing many columns and column groups.Show less
1Microsoft
1Internet Explorer
Apr 22, 2026
Dec 30, 2012
N/A· v4
8.8 HIGH· v3
9.3 HIGH· v2
Use-after-free vulnerability in Microsoft Internet Explorer 6 through 8 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to an object that (1) was not properly allocated or (2...Show more
Use-after-free vulnerability in Microsoft Internet Explorer 6 through 8 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to an object that (1) was not properly allocated or (2) is deleted, as demonstrated by a CDwnBindInfo object, and exploited in the wild in December 2012.Show less
2Google
Opensuse
2Chrome
Opensuse
Apr 29, 2026
Dec 12, 2012
N/A· v4
N/A· v3
10.0 HIGH· v2
Use-after-free vulnerability in Google Chrome before 23.0.1271.97 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to the URL loader.
2Google
Opensuse
2Chrome
Opensuse
Apr 29, 2026
Dec 12, 2012
N/A· v4
N/A· v3
10.0 HIGH· v2
Use-after-free vulnerability in Google Chrome before 23.0.1271.97 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to visibility events.
1Microsoft
1Internet Explorer
Apr 29, 2026
Dec 12, 2012
N/A· v4
9.0 CRITICAL· v3
9.3 HIGH· v2
Use-after-free vulnerability in Microsoft Internet Explorer 9 and 10 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to an object that (1) was not properly initialized or (2)...Show more
Use-after-free vulnerability in Microsoft Internet Explorer 9 and 10 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to an object that (1) was not properly initialized or (2) is deleted, aka "Improper Ref Counting Use After Free Vulnerability."Show less
2Google
Opensuse
2Chrome
Opensuse
Apr 29, 2026
Dec 4, 2012
N/A· v4
N/A· v3
10.0 HIGH· v2
Use-after-free vulnerability in Google Chrome before 23.0.1271.95 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to the Media Source API.
2Google
Opensuse
2Chrome
Opensuse
Apr 29, 2026
Nov 28, 2012
N/A· v4
N/A· v3
7.5 HIGH· v2
Use-after-free vulnerability in Google Chrome before 23.0.1271.91 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to SVG filters.
5Canonical
MozillaOpensuse+2 more
13Enterprise Linux Desktop
Enterprise Linux EusEnterprise Linux Server+10 more
Apr 29, 2026
Nov 21, 2012
N/A· v4
N/A· v3
9.3 HIGH· v2
Use-after-free vulnerability in the nsTextEditorState::PrepareEditor function in Mozilla Firefox before 17.0, Firefox ESR 10.x before 10.0.11, Thunderbird before 17.0, Thunderbird ESR 10.x before 10.0.11, and SeaMonkey b...Show more
Use-after-free vulnerability in the nsTextEditorState::PrepareEditor function in Mozilla Firefox before 17.0, Firefox ESR 10.x before 10.0.11, Thunderbird before 17.0, Thunderbird ESR 10.x before 10.0.11, and SeaMonkey before 2.14 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors, a different vulnerability than CVE-2012-4214.Show less