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CVE-2020-26154

CRITICALCVSS 9.8/10EPSS 3.57%

Last modified

CVE-2020-26154 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. url.cpp in libproxy through 0.4.15 is prone to a buffer overflow when PAC is enabled, as demonstrated by a large PAC file that is delivered without a Content-length header.. EPSS estimates a 3.57% chance of exploitation in the next 30 days.

Description

url.cpp in libproxy through 0.4.15 is prone to a buffer overflow when PAC is enabled, as demonstrated by a large PAC file that is delivered without a Content-length header.

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
3.57%

87.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Libproxy ProjectLibproxy<= 0.4.15
FedoraprojectFedora32
FedoraprojectFedora33
DebianDebian Linux9.0
DebianDebian Linux10.0
OpensuseLeap15.1
OpensuseLeap15.2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-26154?
url.cpp in libproxy through 0.4.15 is prone to a buffer overflow when PAC is enabled, as demonstrated by a large PAC file that is delivered without a Content-length header.
How severe is CVE-2020-26154?
CVE-2020-26154 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.57% probability of exploitation in the next 30 days.
How do I fix CVE-2020-26154?
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.

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Source: NVD / NIST