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CVE-2015-4495
The PDF reader in Mozilla Firefox before 39.0.3, Firefox ESR 38.x before 38.1.1, and Firefox OS before 2.2 allows remote attackers to…
High8.8Known exploitedEPSS 68.6%
- Published
- Updated
- Reserved
- Assigned by
- mozilla
Description
The PDF reader in Mozilla Firefox before 39.0.3, Firefox ESR 38.x before 38.1.1, and Firefox OS before 2.2 allows remote attackers to bypass the Same Origin Policy, and read arbitrary files or gain privileges, via vectors involving crafted JavaScript code and a native setter, as exploited in the wild in August 2015.
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Mozilla Firefox Security Feature Bypass Vulnerability.
- Added
- 25 May 2022
- Fix due (US federal)
- 15 Jun 2022
- Used by ransomware
- Not known
Apply updates per vendor instructions.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 68.6% · top 0.7% of all CVEs (4 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: no · Technical impact: total
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Weakness
Affected products
n/a
- affected n/a
References (18)
- https://bugzilla.mozilla.org/show_bug.cgi?id=1179262 (opens in a new tab)x_refsource_CONFIRMx_transferred
- SUSE-SU-2015:1379 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- SUSE-SU-2015:1380 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 76249 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 37772 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- RHSA-2015:1581 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- GLSA-201512-10 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- openSUSE-SU-2015:1389 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- USN-2707-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- SUSE-SU-2015:1528 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=1178058 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://blog.mozilla.org/security/2015/08/06/firefox-exploit-found-in-the-wild/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.mozilla.org/security/announce/2015/mfsa2015-78.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1033216 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- SUSE-SU-2015:1449 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- openSUSE-SU-2015:1390 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-4495 (opens in a new tab)government-resource
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)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (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)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2015-4495)Record last updated .