CVE-2017-7822

Name: CVE-2017-7822
Creator: NVD / NIST
Published: 2018-06-11T21:29:10.953+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.42%

Last modified Jun 17, 2026

CVE-2017-7822 is a vulnerability of currently unknown severity. The AES-GCM implementation in WebCrypto API accepts 0-length IV when it should require a length of 1 according to the NIST Special Publication 800-38D specification. This might allow for the authentication key to be determined in some instances. EPSS estimates a 1.42% chance of exploitation in the next 30 days.

Description

The AES-GCM implementation in WebCrypto API accepts 0-length IV when it should require a length of 1 according to the NIST Special Publication 800-38D specification. This might allow for the authentication key to be determined in some instances. This vulnerability affects Firefox < 56.

Metrics

EPSS Probability

1.42%

69.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	<= 55.0.3

References

http://www.securityfocus.com/bid/101057Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039465Third Party Advisory, VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1368859Issue Tracking
https://www.mozilla.org/security/advisories/mfsa2017-21/Vendor Advisory
http://www.securityfocus.com/bid/101057Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039465Third Party Advisory, VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1368859Issue Tracking
https://www.mozilla.org/security/advisories/mfsa2017-21/Vendor Advisory

Timeline

Published: Jun 11, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-7822?

How severe is CVE-2017-7822?

Severity scoring for CVE-2017-7822 is pending analysis. The EPSS model estimates a 1.42% probability of exploitation in the next 30 days.

How do I fix CVE-2017-7822?

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-2017-7822?

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

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Source: NVD / NIST