Skip to content
CVE Tracker
  • Newest CVEsPage
  • Recently added to KEVPage
  • Rising exploitation (EPSS)Page
  • Weekly digestPage
  • StatisticsPage
  • WatchlistPage
  • API documentationPage
  • MCP serverPage
  • Data sourcesPage
  • ChangelogPage
  • AboutPage
  • How it's builtPage
Back

CVE-2018-6343

Proxygen fails to validate that a secondary auth manager is set before dereferencing it. That can cause a denial of service issue when…

High7.5EPSS 0.83%
Published
Updated
Reserved
Assigned by
facebook

Description

Proxygen fails to validate that a secondary auth manager is set before dereferencing it. That can cause a denial of service issue when parsing a Certificate/CertificateRequest HTTP2 Frame over a fizz (TLS 1.3) transport. This issue affects Proxygen releases starting from v2018.10.29.00 until the fix in v2018.11.19.00.

Scores

CVSS scores of CVE-2018-6343, by who scored it
Scored byCVSSScoreVector
CISA-ADPADP (enrichment)3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVDNVD · Modified3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.83% · top 42% of all CVEs (5 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: yes · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

Affected products

  • Facebook · Proxygen

    • affected v2018.11.19.00
    • affected v2018.10.29.00 – < unspecified
    • unaffected unspecified – < v2018.10.29.00

References (1)

Sources

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

Badge for a README or a ticket

CVE-2018-6343 badge
[![CVE-2018-6343](https://trackcve.app/badge/CVE-2018-6343.svg)](https://trackcve.app/cve/CVE-2018-6343)

Record last updated .