CVE-2015-4495

HIGHCVSS 8.8/10Actively ExploitedEPSS 70.23%

Last modified

CVE-2015-4495 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. CISA has confirmed active exploitation in the wild. EPSS estimates a 70.23% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
8.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability
70.23%

99.3th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
MozillaFirefox< 39.0.3
MozillaFirefox>= 38.0, < 38.1.1
MozillaFirefox Os< 2.2
OracleSolaris11.3
CanonicalUbuntu Linux12.04
CanonicalUbuntu Linux14.04
CanonicalUbuntu Linux15.04
RedhatEnterprise Linux Desktop5.0
RedhatEnterprise Linux Desktop6.0
RedhatEnterprise Linux Desktop7.0
RedhatEnterprise Linux Eus6.7
RedhatEnterprise Linux Eus7.1
RedhatEnterprise Linux Eus7.2
RedhatEnterprise Linux Eus7.3
RedhatEnterprise Linux Eus7.4
RedhatEnterprise Linux Eus7.5
RedhatEnterprise Linux Eus7.6
RedhatEnterprise Linux Eus7.7
RedhatEnterprise Linux Server5.0
RedhatEnterprise Linux Server6.0
RedhatEnterprise Linux Server7.0
RedhatEnterprise Linux Server Aus7.3
RedhatEnterprise Linux Server Aus7.4
RedhatEnterprise Linux Server Aus7.6
RedhatEnterprise Linux Server Aus7.7
RedhatEnterprise Linux Server Tus7.3
RedhatEnterprise Linux Server Tus7.6
RedhatEnterprise Linux Server Tus7.7
RedhatEnterprise Linux Workstation5.0
RedhatEnterprise Linux Workstation6.0
RedhatEnterprise Linux Workstation7.0
SuseLinux Enterprise Debuginfo11Sp1
OpensuseOpensuse13.1
OpensuseOpensuse13.2
SuseLinux Enterprise Desktop11Sp3
SuseLinux Enterprise Desktop12
SuseLinux Enterprise Server11Sp1
SuseLinux Enterprise Server12
SuseLinux Enterprise Software Development Kit11Sp3
SuseLinux Enterprise Software Development Kit12

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is 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 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.
How severe is CVE-2015-4495?
CVE-2015-4495 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 70.23% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.
How do I fix CVE-2015-4495?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-4495?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST