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CVE-2021-29987

🗓️ 17 Aug 2021 19:12:29Reported by mozillaType 
cve
 cve
🔗 web.nvd.nist.gov👁 261 Views

After multiple permission requests, panels display in different positions but record click in default, leading to user trickery. Affects Firefox < 91 & Thunderbird < 91 on Linux

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
altlinux
ALT Linux
Security fix for the ALT Linux 10 package thunderbird version 91.0-alt1
12 Aug 202100:00
–altlinux
altlinux
ALT Linux
Security fix for the ALT Linux 10 package firefox-esr version 91.0.1-alt1
4 Sep 202100:00
–altlinux
attackerkb
attackerkb
CVE-2021-29987
17 Aug 202120:15
–attackerkb
alpinelinux
AlpineLinux
CVE-2021-29987
17 Aug 202119:12
–alpinelinux
archlinux
ArchLinux
[ASA-202108-14] firefox: multiple issues
11 Aug 202100:00
–archlinux
astralinux
AstraLinux
Astra Linux – Vulnerability in Firefox and Thunderbird
14 Sep 202612:41
–astralinux
bdu_fstec
BDU FSTEC
Firefox Thunderbird Auth Bypass
13 Apr 202200:00
–bdu_fstec
cnnvd
CNNVD
Mozilla Firefox security vulnerabilities
10 Aug 202100:00
–cnnvd
cvelist
Cvelist
CVE-2021-29987
17 Aug 202119:12
–cvelist
debiancve
Debian CVE
CVE-2021-29987
17 Aug 202119:12
–debiancve
Rows per page
NVD
Vulners
Node
[
  {
    "product": "Firefox",
    "vendor": "Mozilla",
    "versions": [
      {
        "lessThan": "91",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Thunderbird",
    "vendor": "Mozilla",
    "versions": [
      {
        "lessThan": "91",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

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17 Jun 2026 03:48Current
6.6Medium risk
Vulners AI Score6.6
CVSS 24.3
CVSS 3.16.5
EPSS0.00945
261