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CVE-2015-2740
Buffer overflow in the nsXMLHttpRequest::AppendToResponseText function in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and…
- 10.0HighCVSS base score
- 5.5%Exploitation in 30 daysEPSS · top 7.1% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By mozilla
- 3 months later
· 3 months later
Published
- 9 years later
· 9 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 5.5% · top 7.1% of all CVEs (10 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 10.0.
Affected products
n/a
- affected n/a
References
20
- openSUSE-SU-2015:1229 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- RHSA-2015:1455 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- SUSE-SU-2015:1268 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- GLSA-201512-10 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=1170809 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 75541 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-3324 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- USN-2673-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 1032784 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- RHSA-2015:1207 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://www.mozilla.org/security/announce/2015/mfsa2015-66.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- SUSE-SU-2015:1269 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- openSUSE-SU-2015:1266 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- USN-2656-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- SUSE-SU-2015:1449 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 1032783 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- DSA-3300 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- USN-2656-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2015-2830 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://cveledger.app/cve/CVE-2015-2740)Record last updated .