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Vulnerabilities

Vulnerability · CVE-2021-3326

The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid input sequences in the ISO-2022-JP-3 encoding, fails an assertio…

Published Jan 27, 2021 · catalog updated Oct 14, 2026 · the affected product

Check if you run it

No confirmed exploitation is on record for CVE-2021-3326. EPSS is 3.82%. Act only if a listed version of the affected product is installed.

Gaps on this record

  • No plain product name is stored. The page cannot tell you which product to check.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
3.82%
Remediation
Advisory link
Affected products
cpe fujitsu/m10-1 firmware · cpe fujitsu/m10-4 firmware · cpe fujitsu/m10-4s firmware · cpe fujitsu/m12-1 firmware · cpe fujitsu/m12-2 firmware · cpe fujitsu/m12-2s firmware

The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid input sequences in the ISO-2022-JP-3 encoding, fails an assertion in the code path and aborts the program, potentially resulting in a denial of service.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe fujitsu/m10-1 firmwareversion unspecified
  • cpe fujitsu/m10-4 firmwareversion unspecified
  • cpe fujitsu/m10-4s firmwareversion unspecified
  • cpe fujitsu/m12-1 firmwareversion unspecified
  • cpe fujitsu/m12-2 firmwareversion unspecified
  • cpe fujitsu/m12-2s firmwareversion unspecified
  • cpe gnu/glibcversion unspecified
  • cpe netapp/e-series santricity os controllerversion unspecified
  • cpe netapp/ontap select deploy administration utilityversion unspecified
  • cpe oracle/communications cloud native core security edge protection proxy1.5.0

How to fix CVE-2021-3326

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2021-3326. EPSS is 3.82%. Act only if a listed version of the affected product is installed.

Which versions are affected?

Compare what you have installed with oracle/communications cloud native core security edge protection proxy 1.5.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-617. EPSS 3.82%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 27, 2021 · NIST NVD

    Detected

    The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid input sequences in the ISO-2022-JP-3 encoding, fails an assertion in the code path and aborts the program, potentially resulting in a denial of service.

  2. Oct 14, 2026 · NIST NVD

    Updated

    The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid input sequences in the ISO-2022-JP-3 encoding, fails an assertion in the code path and aborts the program, potentially resulting in a denial of service.

Sources

  • CVE.orgVulnerability recordCVE-2021-3326

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2021-3326

    30-day exploitation probability 3.82%

    first.org
  • NIST NVDVulnerability recordCVE-2021-3326

    The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid input sequences in the ISO-2022-JP-3 encoding, fails an assertion in the code path and aborts the program, potentially resulting in a denial of service.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 23, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

CVE-2021-3326: The iconv function in the GNU C Library (aka glibc o… · ZeroDay Findings