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CVE-2017-5461

Mozilla Network Security Services (NSS) before 3.21.4, 3.22.x through 3.28.x before 3.28.4, 3.29.x before 3.29.5, and 3.30.x before 3.30.1…

Critical9.8EPSS 4.7%
Published
Updated
Reserved
Assigned by
mozilla

Description

Mozilla Network Security Services (NSS) before 3.21.4, 3.22.x through 3.28.x before 3.28.4, 3.29.x before 3.29.5, and 3.30.x before 3.30.1 allows remote attackers to cause a denial of service (out-of-bounds write) or possibly have unspecified other impact by leveraging incorrect base64 operations.

Scores

CVSS scores of CVE-2017-5461, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified3.0Critical9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
4.7% · top 8.2% of all CVEs (3 Nov 2026)

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The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.

Weakness

Affected products

  • Mozilla · Thunderbird

    • affected unspecified – < 52.1
  • Mozilla · Firefox ESR

    • affected unspecified – < 45.9
    • affected unspecified – < 52.1
  • Mozilla · Firefox

    • affected unspecified – < 53

References (21)

Sources

The same CVE in the primary databases and aggregators, to check against.

Record last updated .