CVE & CISA-KEV Catalog

CVE-2018-5159

CRITICALEPSS 97th pctl
9.8
CVSS v3
NVD

Description

An integer overflow can occur in the Skia library due to 32-bit integer use in an array without integer overflow checks, resulting in possible out-of-bounds writes. This could lead to a potentially exploitable crash triggerable by web content. This vulnerability affects Thunderbird < 52.8, Thunderbird ESR < 52.8, Firefox < 60, and Firefox ESR < 52.8.

CWE-190Integer OverflowCWE-787Out-of-bounds Write

How to fix

Remediation Available
firefoxDebian
Fixed in:60.0-1CVE-2018-5159
firefoxUbuntu
Fixed in:60.0+build2-0ubuntu0.14.04.1USN-3645-1
Fixed in:60.0+build2-0ubuntu0.16.04.1USN-3645-1
Fixed in:60.0+build2-0ubuntu1USN-3645-1
thunderbirdUbuntu
Fixed in:1:52.8.0+build1-0ubuntu0.14.04.1USN-3660-1
Fixed in:1:52.8.0+build1-0ubuntu0.16.04.1USN-3660-1
Fixed in:1:52.8.0+build1-0ubuntu0.18.04.1USN-3660-1
DeveloperEditionWindows application
Affected:60.0Fixed in:60.0Mozilla
Affected:52.8.0Fixed in:52.8.0Mozilla
Mozilla Firefox (en-US)Windows application
Affected:60.0Fixed in:60.0Mozilla
Affected:52.8.0Fixed in:52.8.0Mozilla
Mozilla Thunderbird (en-US)Windows application
Affected:52.8.0Fixed in:52.8.0Mozilla

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Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

21.29%probability of exploitation in 30 days
97thpercentile

Very high risk: more likely to be exploited than 97% of all known CVEs.

References

Related Vulnerabilities

Other CWE-190 (Integer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2020-16040Medium6.5100%-Fix
CVE-2019-11477High7.599%-Fix
CVE-2023-44443High7.894%-Fix
CVE-2014-0569High9.390%--
CVE-2017-3599High7.590%-Fix
CVE-2023-21716Critical9.882%-Fix
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-25.