Known exploited vulnerability
CVE-2015-4495
The short answer
CVE-2015-4495 affects n/a n/a and is rated high (CVSS 8.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2022-05-25: attackers are using it, so patch it first.
What it is
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.
Weakness: CWE-346.
Severity
8.8 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since May 25, 2022
Federal due date Jun 15, 2022
EPSS, next 30 days
69%
Higher than 99% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply updates per vendor instructions.
Affected products
n/a. NVD's record lists the exact affected versions.
References
- blog.mozilla.org/security/2015/08/06/firefox-exploit-found-in-the-wild/ Issue TrackingVendor Advisory
- bugzilla.mozilla.org/show_bug.cgi?id=1178058 Issue Tracking
- bugzilla.mozilla.org/show_bug.cgi?id=1179262 Issue Tracking
- security.gentoo.org/glsa/201512-10 Third Party Advisory
- www.exploit-db.com/exploits/37772/ ExploitThird Party AdvisoryVDB Entry
- blog.mozilla.org/security/2015/08/06/firefox-exploit-found-in-the-wild/ Issue TrackingVendor Advisory
- bugzilla.mozilla.org/show_bug.cgi?id=1178058 Issue Tracking
- bugzilla.mozilla.org/show_bug.cgi?id=1179262 Issue Tracking
- security.gentoo.org/glsa/201512-10 Third Party Advisory
- www.exploit-db.com/exploits/37772/ ExploitThird Party AdvisoryVDB Entry
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-4495 US Government Resource
Questions
Is CVE-2015-4495 being exploited?
Yes. CISA added CVE-2015-4495 to its Known Exploited Vulnerabilities catalog on 2022-05-25, with a federal remediation due date of 2022-06-15.
How do I fix CVE-2015-4495?
CISA's required action: Apply updates per vendor instructions.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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