CVE-2017-5928

Severity: low (CVSS 3.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-02-27 · updated 2026-06-17

Description

The W3C High Resolution Time API, as implemented in various web browsers, does not consider that memory-reference times can be measured by a performance.now "Time to Tick" approach even with the https://bugzilla.mozilla.org/show_bug.cgi?id=1167489#c9 protection mechanism in place, which makes it easier for remote attackers to conduct AnC attacks via crafted JavaScript code.

Affected products

W3 High Resolution Time Api: all versions

References

http://www.cs.vu.nl/~herbertb/download/papers/anc_ndss17.pdf
http://www.securityfocus.com/bid/97036
https://www.vusec.net/projects/anc
http://www.cs.vu.nl/~herbertb/download/papers/anc_ndss17.pdf
http://www.securityfocus.com/bid/97036
https://www.vusec.net/projects/anc

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