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CVE-2020-26535

CRITICALCVSS 9.8/10EPSS 1.70%

Last modified

CVE-2020-26535 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An issue was discovered in Foxit Reader and PhantomPDF before 10.1. If TslAlloc attempts to allocate thread local storage but obtains an unacceptable index value, V8 throws an exception that leads to a write access violation (and read access violation).. EPSS estimates a 1.70% chance of exploitation in the next 30 days.

Description

An issue was discovered in Foxit Reader and PhantomPDF before 10.1. If TslAlloc attempts to allocate thread local storage but obtains an unacceptable index value, V8 throws an exception that leads to a write access violation (and read access violation).

Metrics

CVSS 3.1
9.8/10

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

EPSS Probability
1.70%

74.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
FoxitsoftwareFoxit Reader< 10.1
FoxitsoftwarePhantompdf< 10.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-26535?
An issue was discovered in Foxit Reader and PhantomPDF before 10.1. If TslAlloc attempts to allocate thread local storage but obtains an unacceptable index value, V8 throws an exception that leads to a write access violation (and read access violation).
How severe is CVE-2020-26535?
CVE-2020-26535 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.70% probability of exploitation in the next 30 days.
How do I fix CVE-2020-26535?
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-2020-26535?

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

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Source: NVD / NIST