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Vulnerability record · CVE-2015-2740 · published 6 July 2015

CVE-2015-2740: Mozilla thunderbird memory buffer overflow vulnerability

Mozilla · Thunderbird

Buffer overflow in the nsXMLHttpRequest::AppendToResponseText function in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before 38.1, and Thunderbird before 38.1 might allow remote attackers to cause a denial of service or have unspecified other impact via unknown vectors.

10.0 CVSS 2.0 High EPSS 5.6% · top 7.4% CWE-119 · Memory buffer overflow
10.0CVSS 2.0 base score
5.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
9Affected product versions listed by NVD
40References
17 Jun 2026Last modified by NVD

Description

Buffer overflow in the nsXMLHttpRequest::AppendToResponseText function in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before 38.1, and Thunderbird before 38.1 might allow remote attackers to cause a denial of service or have unspecified other impact via unknown vectors.

AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

9 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00025.html
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00031.html
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00033.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00034.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00021.html
http://rhn.redhat.com/errata/RHSA-2015-1207.html
http://rhn.redhat.com/errata/RHSA-2015-1455.html
http://www.debian.org/security/2015/dsa-3300
http://www.debian.org/security/2015/dsa-3324 Third Party Advisory
http://www.mozilla.org/security/announce/2015/mfsa2015-66.html Vendor Advisory
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html Third Party Advisory
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html Third Party Advisory
http://www.securityfocus.com/bid/75541
http://www.securitytracker.com/id/1032783
http://www.securitytracker.com/id/1032784
http://www.ubuntu.com/usn/USN-2656-1
http://www.ubuntu.com/usn/USN-2656-2
http://www.ubuntu.com/usn/USN-2673-1 Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1170809 Issue Tracking
https://security.gentoo.org/glsa/201512-10
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00025.html
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00031.html
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00033.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00034.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00021.html
http://rhn.redhat.com/errata/RHSA-2015-1207.html
http://rhn.redhat.com/errata/RHSA-2015-1455.html
http://www.debian.org/security/2015/dsa-3300
http://www.debian.org/security/2015/dsa-3324 Third Party Advisory
http://www.mozilla.org/security/announce/2015/mfsa2015-66.html Vendor Advisory
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html Third Party Advisory
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html Third Party Advisory
http://www.securityfocus.com/bid/75541
http://www.securitytracker.com/id/1032783
http://www.securitytracker.com/id/1032784
http://www.ubuntu.com/usn/USN-2656-1
http://www.ubuntu.com/usn/USN-2656-2
http://www.ubuntu.com/usn/USN-2673-1 Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1170809 Issue Tracking
https://security.gentoo.org/glsa/201512-10

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Source: NIST National Vulnerability Database (record CVE-2015-2740), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.