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CVE-2021-3420

🗓️ 05 Mar 2021 19:19:28Reported by redhatType 
cve
 cve
🔗 web.nvd.nist.gov📰️ 10 Media mentions👁 192 Views

A flaw in newlib versions prior to 4.0.0 causes integer overflow, leading to heap-based buffer overflow

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Detection
Affected
Refs
Social
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2021-3420
5 Mar 202121:15
–attackerkb
alpinelinux
AlpineLinux
CVE-2021-3420
5 Mar 202119:19
–alpinelinux
bdu_fstec
BDU FSTEC
newlib Buffer Overflow DoS
13 Oct 202100:00
–bdu_fstec
cnnvd
CNNVD
Red Hat newlib libc input validation error vulnerability
5 Mar 202100:00
–cnnvd
cvelist
Cvelist
CVE-2021-3420
5 Mar 202119:19
–cvelist
debiancve
Debian CVE
CVE-2021-3420
5 Mar 202119:19
–debiancve
euvd
EUVD
EUVD-2021-26748
7 Oct 202500:30
–euvd
fedora
Fedora
[SECURITY] Fedora 32 Update: arm-none-eabi-newlib-4.1.0-1.fc32
12 Mar 202100:07
–fedora
fedora
Fedora
[SECURITY] Fedora 33 Update: arm-none-eabi-newlib-4.1.0-1.fc33
11 Mar 202123:38
–fedora
fedora
Fedora
[SECURITY] Fedora 34 Update: arm-none-eabi-newlib-4.1.0-1.fc34
19 Mar 202120:25
–fedora
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NVD
Vulners
[
  {
    "product": "newlib",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "newlib versions prior to 4.0.0"
      }
    ]
  }
]
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17 Jun 2026 04:05Current
9.3Critical risk
Vulners AI Score9.3
CVSS 27.5
CVSS 3.19.8
EPSS0.02103
192