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CVE-2021-31873

Status: ModifiedCritical (9.8)—

An issue was discovered in klibc before 2.0.9. Additions in the malloc() function may result in an integer overflow and a subsequent heap buffer overflow.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (2)

Debian — Debian LinuxKlibc Project — Klibc

CWEs

References

Raw JSON (NVD)

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  "lastModified": "2026-06-17T03:52:23.273",
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